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150 Science Essay Topic Ideas

Interesting science topics

Interesting science topics

Science Topics to Write About

Need ideas about what to write your persuasive science essay on? You've come to the right place.

Included in this Article:

1. Health Topics List

2. Government Website Links

3, Medical Topics List

4. Magazine and Newspaper Links

5. Mental Health Topics List

6. Psychology Topics List

7. Non-profit Organization Links

8. Environmental Topics List

9. Environmental Research Links

Health Topics

  1. Will the Covid-19 vaccines be safe?
  2. How has the pandemic changed the health habits of people in your country? Will this have lasting effects on the spread of sickness and disease?
  3. How do viruses like Covid-19 move from animals to people?
  4. What are the best current treatment options for people with severe complications from Covid-19?
  5. What are the negative and positive health effects of lockdowns?
  6. What can a person do to improve their immune system's ability to fight a virus or other disease?
  7. Can eating certain foods like yogurt reduce the chance of developing Type 2 diabetes?
  8. Do the soldiers who received Agent Orange contamination during the herbicide spraying operations during the Vietnam war continue to have health problems?
  9. What is Multiple Sclerosis? What is the best way to treat it?
  10. How do tension and stress affect the body?
  11. Should teens get the HPV vaccine? Do we need laws to force more people to get this vaccine?
  12. If you think you have Alzheimer's, does that mean you do?
  13. How does playing competitive sports affect women's health?
  14. Do female athletes have more trouble getting pregnant later on?
  15. Can adult stem cells be used to help us stay stronger as we age?
  16. Can venom from spiders and other animals really be used in medical treatment safely?
  17. What are antioxidants? Does eating antioxidants really help you prevent cancer or other diseases?
  18. Can people get over peanut allergies? What therapy works?
  19. Why are so many children now tested to be deficient in vitamin D, and how does this affect them?
  20. Why does tuberculosis continue to be a problem? How can we best combat this disease?
  21. Is there an “obesity gene?”
  22. Do people really need to take “fish oil” supplements?
  23. Are multi-vitamin pills really as good as eating the right foods?
  24. Why does the flu virus change every year?
  25. Is there a better way of making a flu vaccine?
  26. What are the different types of stem cells, and how can they be used?
  27. Do we need to continue embryonic stem cell research or will adult stem cells work just as well?
  28. Should we try to save babies born before 27 weeks?
  29. How important is sleep to health?
  30. Does screening for breast cancer really work?
  31. Is there a link between breastfeeding and better health, or lower obesity rates?

Government-sponsored websites (which usually end in .gov) provide links to research articles, statistics, and information about government policies, spending priorities, and laws. Here are some examples:

What is the link between food and health?

What is the link between food and health?

Medical Topics

  1. Does the size of your waist increase your diabetes and heart attack risk?
  2. What is the possibility of finding a cure for cystic fibrosis?
  3. What is glaucoma? How can it be prevented?
  4. What is the best way to keep your brain healthy for life?
  5. How dangerous is a concussion? What is the best way to treat a concussion?
  6. What is the best way to decrease infant mortality rates in developing nations?
  7. How can we eliminate polio?
  8. What are the health dangers of pet owners not picking up their dog’s feces? What can cities do about it?
  9. Are E-Cigarettes a path away from tobacco or towards it?
  10. What is inflammatory bowel disease? How can it be best treated? Can the food you eat help you avoid this chronic illness?
  11. What is the importance of the microorganisms which live inside and on humans? How to they help and hurt us?
  12. Scientists are predicting that we have entered the “End of the Antibiotic Era.” What will this mean for health care?
  13. What alternatives to antibiotics are being developed? Have antibacterial lotions, soaps and cleaning products created a “superbug?”
  14. Does earwax contain clues to our environment? Can those clues help doctors to diagnose us?
  15. Can the odors of our bodily fluids give us clues about our health?
  16. Can 3-D printing technology be used to help in medicine?
  17. Can 3-D printing be used to create body parts and organs for people?
  18. Can traditional Chinese medicine techniques like acupuncture, cupping, reflexology, and massage therapy really work?
  19. How is nanotechnology helpful in treating cancer?
  20. Are the chemicals used in food packaging harmful to human health?
  21. What treatments are available for women who have repeated miscarriages?
  22. Can stem cells be used to help cut death rates in heart attack patients?
  23. Can miscarriages be prevented with lifestyle changes?
  24. Are eating disorders fatal? How can they best be prevented?
  25. What is really the best and healthiest diet for humans? Is it low-carbohydrate, high-carbohydrate, low-sugar, high-protein, or vegetarian?

You can find the most current arguments on scientific and medical issues by looking through recent issues of major newspapers and magazines. Often, these articles will give you ideas for papers, as well as lead you to the original sources and research. Look for the "Science" or "Health" section.

  • The New York Time Science Section: Includes special areas for environmental news and space and the cosmos.
  • BBC Science: Includes both articles and videos about recent events and scientific discoveries.
  • Discover: Features articles about many different medical topics, current news, and research.
  • US News and World Report: Does an especially good job of giving information about health and diet.

Mental Health Topics

  1. What is the mental health effect of social isolation from lockdowns, masks, and social distancing?
  2. Why do some people remember dreams and others don't? Does this affect mental health?
  3. Does mental illness cause you to get physical illness more frequently?
  4. What makes us human? How is the human brain different?
  5. Does a person’s height affect their personality? Do shorter people really have an inferiority complex?
  6. What causes Attention Deficit Hyperactivity Disorder (ADHD)? How can this best be treated?
  7. What effect does “screen time” have on children’s mental health?
  8. How important is sleep to mental health?
  9. What are the long-term effects of using drugs like Prozac or Ritalin on mental health?
  10. Is intelligence static? Does a person’s intelligence change over their lifetime?
  11. What is intelligence? How can it best be measured?
  12. How can teenage depression be best diagnosed and treated?
  13. Are most homeless people mentally ill?
  14. Can people be cured of multiple-personality disorder?
  15. How can we best prevent suicide?
  16. What is schizophrenia? What are the treatments?
  17. How does family stress affect brain development in children?
  18. Does more stress equal more headaches and other physical symptoms?
  19. How can families help their elderly loved ones feel less lonely and depressed?
  20. Does epilepsy or asthma increase the risk of self-harm?
  21. Who suffers chronic pain the most? How is this related to mental health?
  22. Does stopping smoking improve mental health?
  23. What is the effectiveness of behavioral therapy techniques?
  24. Does caregiving cause psychological stress?
  25. Do spirituality and religion protect people from mental illness?
  26. Do concussions increase the risk of depression?

Psychology Topics

  1. What will be the long-term effect on children of virtual learning, social distancing in classrooms, and lack of physical play with other children during COVID-19?
  2. Is working remotely positive or negative for the self-esteem of workers?
  3. How have the stresses of remote work while caring for children impacted the dynamics of family life?
  4. Does drinking soda or eating sugary foods increase aggression in children?
  5. Does a mother's depression during pregnancy affect her baby's brain?
  6. Can talk therapy really change the brain?
  7. How does Post Traumatic Stress Disorder affect people's lives?
  8. Do premature infants need to hear parent's voices?
  9. Do parasites have a way of changing our behavior?
  10. Can bad memories be erased?
  11. How does your sense of taste or smell relate to your personality?
  12. Do men and women have the same sense of smell?
  13. Does switching schools lead to kids having a higher risk of psychosis?
  14. What is the impact of bullying on children?
  15. Are toxic chemicals causing the recent rise in ADHD, autism, and other neurodevelopmental disabilities?
  16. How does Ritalin affect the brain?
  17. How does memory work?
  18. Do infections increase memory decline?
  19. Can caffeine help your memory?
  20. Can the lighting in a room affect the way you make decisions?
  21. What causes delusions? Why are some people unable to break free of them?
  22. Why are people moral? What causes us to choose right from wrong?
  23. Does the weather really affect people's moods?
  24. Is there such a thing as "snow rage?"
  25. Why do so many celebrities or lottery winners end up with unhappy lives? Can a person become mentally unhealthy when they gain too much wealth and power too quickly?
  26. Why do holidays make some people unhappy?
  27. What is a sexual addiction? Can it be overcome?
  28. What is the best way to handle "needy" friends?
  29. Is laughter the best medicine?
  30. What causes someone to be vulnerable to dating violence?
  31. What causes people to indulge in binge drinking?
  32. Does the Super Bowl cause domestic violence and other crimes?
  33. Can apps help people cope with mental illness and anxiety?

Many diseases and medical conditions have a non-profit agency that provides help for people with that condition. Most of these give easy-to-understand descriptions of diseases and also links to the latest research, treatments, and cures. To find out if the medical disease you are writing about has a website:

  1. Google search the name of the disease or health condition with "non-profit."
  2. Look for an organization that has that name in the title.
  3. On the website, look to see if it is a non-profit devoted to educating and researching that issue.
  4. Search the website for "research" articles.
  5. There will sometimes just be a description of the research which you may need to Google search in order to find the article. Often, they may even provide links to the research article or the article to download.
Owl banding.  How do scientists use information gathered from banding birds?

Owl banding. How do scientists use information gathered from banding birds?

Environmental Issues

  1. Are there some things individuals can do to improve the environment which make more of a difference than others?
  2. Is the greenhouse effect real?
  3. How important is it to make policy changes that affect greenhouse gasses?
  4. Is the problem with changing emissions standards political or technological?
  5. Are there existing technologies which would let us reduce greenhouse gases now?
  6. Is reducing emissions in the United States going to make a significant difference globally?
  7. How can the world influence China, India, and other heavily polluting countries to reduce emissions?
  8. Does recycling and using green products make a difference?
  9. Do greenhouse gasses really harm people?
  10. Are humans currently causing a new mass extinction of species?
  11. How can we prevent the loss of more rainforests?
  12. How can we best save endangered species?
  13. Are zoos effective in helping endangered or threatened animals?
  14. Should rangers cut off the tusks of animals in the wild to prevent them from being killed by poachers?
  15. Does encouraging eco-tourism help protect the environment?
  16. Can people use their own gardens to help the earth and create a greater diversity of species in their city?
  17. Should we rely on nuclear energy more?
  18. Can we build safe nuclear reactors?
  19. How much does the U.S. rely on nuclear energy right now?
  20. How much can we depend on alternative energy sources like wind, solar, geothermal, and tidal?
  21. What is peak oil? When is this going to happen and what does it mean?
  22. How can countries like China and India meet their growing energy needs best?
  23. What is the long-term impact of nuclear disasters like Fukushima?
  24. Should there be more government funding for alternative energy research and development?
  25. Is fracking causing earthquakes and other environmental problems? Is it worth the risk?
  26. What is the best way to prevent wildfires?
  27. What can countries like China and India do in order to become more “green?”
  28. What is the effect of the heavy air pollution in Chinese cities like Beijing on health?
  29. How did 96% of the species of the Earth become extinct at the end of the Permian Period 252 million years ago? Are we headed in that direction now?
  30. How can toxic waste affect a community?
  31. How can we prevent fertilizer plant disasters like the one which occurred in West, Texas?
  32. How can we help more people have clean drinking water?
  33. What impact does oil drilling have on coastal species?
  34. Why is it important to preserve native species of plants and animals in an environment?
  35. What is the bird banding program in North America and how can people become involved?
  36. Are amphibians really in decline? If so, why? What can we do about it?
  37. Do diseases in wild animals hurt humans?
  38. Can coral reefs be regenerated?
  39. Is climate change good for some ecosystems?
  40. How are scientists using genetic information to help preserve species?

Does Ecotourism Really Help?

Questions & Answers

Question: What do you think of "Is laughter the best medicine?" as an essay topic?

Answer: Using a familiar saying can work for an essay if you do a twist on the idea. What would be interesting about this topic is any research that showed how mood and laughter could keep people healthier. The "placebo effect" might be part of what you'd want to talk about.

Question: Can you suggest a great research title with the topic "Are the chemicals used in food packaging harmful to human health?"

Answer: You can use that question as your title because it explains what your paper is going to discuss. However, you might want to make the title shorter:

1. Does Food Packaging Have Health Risks?

2. How Harmful is Food Packaging?

3. Should Food Packaging Be Changed?

Question: What do you think of, "can coral reefs be regenerated?" as a science essay topic?

Answer: Here are some other topics to consider:

1. How important are coral reefs?

2. What important organisms live inside of coral reefs?

3. How is pollution affecting coral reefs?

4. What is the history of coral reef destruction and regeneration?

Question: What do you think of “Can caffeine help your memory?” as an essay topic?

Answer: It is better to ask a question which does not just have a yes/no answer. Here are some variations:

1. How does caffeine affect a person's memory?

2. How much caffeine hurts a student who wants to retain information?

3. Can caffeine really help a person be more productive over the long run?

Question: How would "Can venom from spiders and other animals really be used in medical treatment safely" work as a science essay topic?

Answer: Great topic idea. Here are some others:

1. How can spider venom be helpful in medical treatment?

2. What makes spider venom and other toxins from animals unique?

3. What type of spider venom is most useful in medical treatment?

4. What are the uses that humans can make from what spiders produce?

Question: What do you think of "How can our environment be protected?" as a science essay topic?

Answer: That is a good an important issue to discuss. However, it would help to narrow the question a bit to make it easier to research. "The environment" is a big topic, so one way to narrow it would be to focus on a part of the environment. Another way to make a question better is to use "what is the best way" or "what is most important" statements to qualify the idea. Here are some possibilities:

What is the best way to improve our air quality?

Which is the most important focus for environmental activists?

How can an individual best help protect the earth?

What can college students do to protect the environment?

Which nonprofit environmental group is doing the most to protect the environment?

How can governments best protect the environment?

How should (put name of country here) protect the environment of their nation?

Question: Do you have a suggestion of essay titles for "human cloning should be banned?"

Answer: That statement is your topic thesis or answer. You need to start with a question which is debatable. Here are some suggestions:

1. Should there be international limits to cloning?

2. What should we do about human cloning?

3. Is human cloning a good idea?

4. What should be the limits to using cloning technology?

Question: What do you think of the topic, "In what way does global warming cause a domino effect?" for a science essay?

Answer: It might be better to make a topic that is a bit broader and your question would be the answer. Here are some possibilities:

1. What are the broader consequences of global warming or climate change?

2. How will climate change affect different countries differently?

3. Who are the winners and losers in climate change?

Question: Do you have any suggestions for a space-themed science essay?

Answer: 1. How big is space?

2. What do we not yet know about the universe?

3. What happened in the first few minutes of our universe?

4. What is "dark matter?"

5. What is the likelihood that life exists in some form on other planets?


Ksj on July 12, 2020:

Good list it helped me much in work

Lokesh on April 29, 2020:

Thanks a ton

Jamal on November 15, 2019:

I love this site

h on May 29, 2019:

My favorite topic is chemistry! Chemistry is life and thanks for the tips!

ChaShaunte on May 30, 2018:

I'm a big science fanatic, so most of these topics will be easy for me to write. I just feel like I need to build up my writing skills, so I will definitely be using quite a few if these. Thanks for these ideas.

savage boi 2.0 on March 08, 2018:

Thanks this really helped my essay is due tomorow wish me luck

meenaal on January 22, 2018:

thanks it helped me alot

Savage boi on January 12, 2018:

Thx helped me with school

Mae on January 02, 2018:

I loved these topics. I used them for my science researches. I liked the plants the most.

joshua on November 30, 2017:

hey these are some great topics

Bella on October 24, 2017:

I liked the ideas it helped me lots

Virginia Kearney (author) from United States on September 20, 2017:

Great idea mahnoor. My husband is a plant researcher, so I should certainly add those sorts of topics and I do have some on my other lists. We just went to see the new Food Evolution movie last night.

If you get a chance to see it, I'd suggest that you go. Here are a couple of topics inspired by the movie: How did the GMO controversy get started? What can be done about the banana wilt which is causing the banana crops to be destroyed? How important was the Green Revolution? Do plants have feelings? Can the world be fed by organic crops alone?

mahnoor on September 20, 2017:

information given on this website is very useful but please add some information about plants,

Beth on June 21, 2016:

I am doing an essay on argumentative issues in regards to the medical field, so this helped a lot.

League of Ledgends on August 21, 2014:

This is a great website for people practising writing. -_-

Dianna Mendez on March 03, 2014:

There are a few I would love to read about, very interesting topics. Thank you for the ideas. Congrats on the HubPot Challenge award.

Deltachord from United States on March 03, 2014:

Interesting hub. You put your thinking cap on to come up with so many ideas.

Ronald E Franklin from Mechanicsburg, PA on March 02, 2014:

Reading this it occurs to me that it's also a good list of potentially interesting hub topics. Congrats on your win!

FlourishAnyway from USA on March 01, 2014:

Good ideas and congratulations on being the contest winner!

swilliams on February 26, 2014:

This is a very intriguing topic. You added insightful information that is both original and useful. Great Article!

Mazlan A from Malaysia on February 26, 2014:

Congrats on being the 1st daily winner. I like the topic 'Can coral reefs be regenerated?' I hope to see someone writes about it on HP!

Maree Michael Martin from Northwest Washington on an Island on February 26, 2014:

Wow, I didn't realize all of these topics fell under science. Way cool. Congrats on wining the 1st Hubpot contest!

Glenn Stok from Long Island, NY on February 26, 2014:

Wow! This is a very useful list. Great ideas for further research and writing articles. Congratulations on being the winner of the first day of the Hubpot Challenge.

Virginia Kearney (author) from United States on February 26, 2014:

I'm excited to be a part of this new contest. I really like the idea of encouraging everyone to continue to publish excellent articles. We all need a little extra challenge!

Beth Eaglescliffe on February 26, 2014:

Congratulations on winning Day 1 of the HubPot Challenge with this great article.

It is full of useful information and has really got my brain cells ticking over. An awesome hub!

Virginia Kearney (author) from United States on February 24, 2014:

Thanks Donna--I find topics by looking at recent science research. There are so many new discoveries being made all the time! In fact, since all of my topics are taken from recent articles and research, that makes it easier for students to find sources if they need to use them in the paper. I probably need to add that in the article.

Donna Caprio Quinlan from Newburyport, MA on February 24, 2014:

Great ideas for essay topics! I often have trouble thinking of ideas and you presented 150!