Science Journal for Kids

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2023-12-14

2024-05-24

E126: What is even more important than being right? [SJK Audio Edition]

Read this article at: or watch at: https://youtu.be/dVoB7IS1k9g Summary: Researchers investigated the impact of the accuracy of COVID-19 beliefs and metacognition on public health compliance and vaccine willingness. Abstract: During the COVID-19 pandemic, public health experts asked people to take steps to help stop the spread of the virus. These included wearing face masks, limiting contact with other people, and getting vaccinated. We wondered why some people followed recommendations while others did not. We thought what people believed about COVID-19 mattered. We also thought the way they think about their beliefs may be important. We asked people about their COVID-19 beliefs. Some beliefs were true, and some were not. Then we asked these people how confident they were that their beliefs were correct. We found that people who evaluated their beliefs more correctly were more likely to follow public health advice. Our results show that it’s important to be right, but it’s also important to know you might be wrong. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2024-05-24

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8 min
2024-04-02

E119: How do bumble bees play? [SJK Audio Edition]

Read this article at: https://www.sciencejournalforkids.org/articles/how-do-bumble-bees-play/ or watch at: https://youtu.be/gT0LECbcxHk Summary: Researchers wanted to find out whether bumble bees take part in object play. Abstract: Have you watched cute cat videos or funny dog compilations? Or primates “monkeying around”? Then you know that mammals love to play. Even the dancing cockatiel has gone viral! But have you ever considered whether insects play “for fun”? We did an experiment to test whether bumble bees take part in object play. We wanted to see whether they would interact and play with wooden balls. We found that the bumble bees did play with a ball-rolling action. Their behavior fulfilled our expectations of play in animals. What's more, they also found it rewarding! We ruled out the possibility that the ball rolling was an attempt to look for food or to mate. This suggests that bumble bees may be more capable of feeling than we had thought! This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2024-04-02

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10 min
2024-10-28

E142: What are the benefits of Marine Protected Areas?

Read this article at: https://www.sciencejournalforkids.org/articles/what-are-the-benefits-of-marine-protected-areas/ or watch at: https://youtu.be/mTdP4plixKw Summary: Researchers wanted to assess the economic benefits of marine protected areas. Abstract: You have probably heard that the ocean is in trouble. One reason is that we are catching too many fish, which is bad for the fish and the environment. But there is a cool solution to that problem called Marine Protected Areas (MPAs). These are special zones in the ocean where fishing is limited. This gives fish a chance to grow and thrive! But some people argue that they are not helpful and make it hard for fisheries. So are there any benefits of MPAs? To find out, we reviewed 81 articles from 37 countries. It turned out that MPAs not only help fish but also fisheries. Near most MPAs, fishermen catch more and find bigger fish. Moreover, MPAs make a lot of money through tourism! This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2024-10-28

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8 min
2022-10-31

E21: How does reducing air pollution help birds? [SJK Audio Edition]

Read this article at: https://www.sciencejournalforkids.org/articles/how-does-reducing-air-pollution-help-birds/ or watch at https://youtu.be/67pX0zh6yvs Summary: Researchers show that air pollution reduction programs not only benefit human health but also the health of birds. Abstract: When you think of pollution, what image comes to mind? Litter? Oil spills? We think of these types of pollution first because they are visible. But the most dangerous form is one that we cannot see: air pollution. We know that chemicals and small particles in the air can harm human health, so governments create laws and programs to reduce air pollution. We wanted to know if these same programs also positively affect birds. After all, birds are such an important part of our world! We built a mathematical model using bird population and air pollution data to see which air pollutants (tropospheric ozone and/or fine particulate matter) harm birds. Then we looked at how a United States air pollution reduction program affected the bird populations. From this analysis, we found that air pollution programs not only benefit humans, but they also protect birds. About us: Science Journal for Kids is a non-profit organization that “translates” academic papers into easy-to-understand science articles for school students. Why? Because children have the right to know about the latest scientific discoveries. #science #article #teach #STEM #students #readaloud #airpollution #birds #ozone #PM2.5 #cleanair #smog #nitrogenoxides #EPA This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2022-10-31

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9 min
2024-04-22

E122: Why don't whales get cancer? [SJK Audio Edition]

Read this article at: https://www.sciencejournalforkids.org/articles/why-dont-whales-get-cancer/ or watch at: https://youtu.be/C11YMSLV_e4 Summary: Researchers wanted to discover how the genomes of the humpback whale have evolved to help them avoid developing cancer. Abstract: Every day, the cells in your body are super busy growing and dividing. When something goes wrong, mutations appear. Our immune system usually detects cells with mistakes and kills them before they become a problem. But sometimes they go undetected and the rogue cell multiplies, turning into cancer. So, if an animal has more cells and a longer life, it should get more cancer. Whales have up to 1,000 times more cells than humans and some live for over 200 years. But their cancer rates are no higher than ours! To figure out why this is, we compared the humpback whale and other whale genomes to other mammal genomes. Our DNA analysis showed that in whales there was duplication of cancer-suppressing genes. We also found that whales have the slowest rate of genetic changes. Our findings help us understand the role of DNA in preventing cancer. It could also help us fight cancer in humans! This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2024-04-22

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11 min
2022-10-31

E38: How does the food you eat affect your growth and development? [SJK Audio Edition]

Read this article at https://www.sciencejournalforkids.org/articles/how-does-the-food-you-eat-affect-your-growth-and-development/ or watch at https://youtu.be/xWD4Yvvciug Summary: Researchers conducted a study review to see how nutrition impacts the growth and development of different body systems in adolescents. Abstract: Hungry? Should you eat an apple or potato chips? Does it really matter? It turns out that what you eat as a child and adolescent affects your growth and development. It can also affect your health as an adult! We wanted to understand the link between nutrition and adolescent growth. We did a review of different scientific studies to see what is currently known about this. We found that not eating enough food, eating the wrong foods, and eating too much food all affect the body’s systems. But the effects are different in each case. We also learned that the negative effects of poor nutrition aren’t permanent if they’re corrected at the right time. About us: Science Journal for Kids is a non-profit organization that “translates” academic papers into easy-to-understand science articles for school students. Why? Because children have the right to know about the latest scientific discoveries. #science #article #teach #STEM #students #readaloud #nutrition #bodysystems #teens #adolescents #malnutrition #healthykidsfood #teenagenutrition #healthyfood This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2022-10-31

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10 min
2024-06-13

E127: How safe is vaping? [SJK Audio Edition]

Read this article at: or watch at: https://youtu.be/0hTsKN9snwU Summary: Researchers reviewed studies to summarize the effects of e-cigarette vaping on the body’s cells. Abstract: Did you know that most people who vape are teens? E-cigarette (e-cig) companies market vaping as a safe alternative to traditional smoking. Well, vaping is safer than traditional smoking, but it is still dangerous to human health. We wanted to summarize the effects that vaping has on the body’s cells. We reviewed scientific studies about vaping and the human body. We found that vaping causes inflammation of the mouth and lungs. It also damages DNA. Long-term inflammation and high levels of DNA damage can cause cancer. Some e-cig users have reported mouth cancer, but not many yet. That is because cancer formation takes a long time. We will need more studies to know the long-term effects of vaping. But current studies show that using e-cigarettes is not safe. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2024-06-13

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10 min
2024-09-21

E140: How much do viruses change over time? [SJK Audio Edition]

Read this article at: https://www.sciencejournalforkids.org/articles/how-much-do-viruses-change-over-time/ or watch at: https://youtu.be/qsMt1xldK64 Summary:Scientists compared ancient bacteriophages in human poop samples dating back 5,300 years to modern ones. Abstract: Bacteriophages, or just phages, are tiny viruses that infect bacteria. Some phages help us by killing harmful bacteria and keeping our gut healthy. Although phages have existed for millions of years, we don’t know much about the ones from ancient times. To find out, we analyzed super old human poop samples. Using a new technique called de novo assembly, we pieced together the DNA of ancient viruses from these samples. We discovered nearly 300 types of bacteriophages that we had never seen before. But there was also one 1,300-year-old phage that was almost exactly the same as a modern day species. This was extremely surprising! Our research provides a useful method to rebuild ancient phage DNA sequences and learn more about the history of viruses. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2024-09-21

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9 min
2025-04-08

E156: How does limiting sugar early in life affect adult health? [SJK Audio Edition]

Read this article at: https://www.sciencejournalforkids.org/articles/how-does-limiting-sugar-early-in-life-affect-adult-health/ or watch at: https://youtu.be/pL6MsH4OHmc Summary: Researchers exploit the end of World War II sugar rationing to examine the link between limited sugar exposure up to age two and health problems as adults. Abstract: What do soda, ice cream, and candy have in common? They all contain lots of added sugar! While sugar makes foods taste great, too much added sugar can negatively impact a person’s health. For instance, studies link high added sugar levels to type 2 diabetes and hypertension. These diseases often occur later in life. Because of World War II, the United Kingdom rationed several foods, including sugar, from 1940 to 1953. In September 1953, sugar rationing ended. This event likely caused diets to be lower in sugar before and higher after that date. We looked at the data and noticed that there was indeed an increase in the amount of sugar people ate right after the sugar rationing ended. We wanted to understand how being in a place with either very little or a lot of sugar early in life affected a person's health as an adult. So, we studied adults born in the UK around the end of sugar rationing who were later diagnosed with type 2 diabetes and hypertension. For this group, we found that restricting sugar until age two decreased the chances of developing type 2 diabetes and hypertension. It also delayed when these diseases started. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2025-04-08

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9 min
2023-02-24

E75: What can tusks tell us about the lives of mastodons? [SJK Audio Edition]

Read this article at: https://www.sciencejournalforkids.org/articles/what-can-tusks-tell-us-about-the-lives-of-mastodons/ or watch at: https://youtu.be/bv5h6B0_8aA Summary: Paleontologists analyzed a male mastodon’s tusk to reveal his behavior during his life. Abstract: Did you know that tusks are enormous teeth? Many animals have them, but the biggest ones belong to elephants and their relatives, including mastodons. Mastodons are now extinct, but paleontologists can use fossil tusks to study the lives of these ancient giants. For our study, we analyzed the right tusk of a male mastodon found in 1998. We also analyzed two chemical elements preserved in the tusks: oxygen and strontium. Using different forms of these elements (called isotopes), we tracked the season when a particular layer of tusk was grown, as well as where he grew it. We learned that he traveled long distances to mate with females. He also had fights with other mastodons and even died during his final battle! This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit sciencejournalforkids.substack.com

2023-02-24

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12 min

We publish cutting-edge peer-reviewed science research adapted for students and their teachers.

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Science Journal for Kids

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E126: What is even more important than being right? [SJK Audio Edition]

E119: How do bumble bees play? [SJK Audio Edition]

E142: What are the benefits of Marine Protected Areas?

E21: How does reducing air pollution help birds? [SJK Audio Edition]

E122: Why don't whales get cancer? [SJK Audio Edition]

E38: How does the food you eat affect your growth and development? [SJK Audio Edition]

E127: How safe is vaping? [SJK Audio Edition]

E140: How much do viruses change over time? [SJK Audio Edition]

E156: How does limiting sugar early in life affect adult health? [SJK Audio Edition]

E75: What can tusks tell us about the lives of mastodons? [SJK Audio Edition]

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Science Journal for Kids

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