What was life like in medieval England?
Science Journal for Kids
by Elitsa
1w ago
Abstract We looked for signs of parasitic worm infection in people who lived in Cambridge, England during the Middle Ages. We compared two groups of people who had very different lifestyles: Augustinian friars and common laborers. The friars had better food and lived longer than the common people. They also were more likely to have access to running water and better toilets. Surprisingly, the friars had a higher worm infection rate! We think the reason might be that the friars used human poop to fertilize their vegetable gardens. The post What was life like in medieval England? appeared first ..read more
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Can you get vaccinated without a needle?
Science Journal for Kids
by Elitsa
1M ago
Abstract Vaccines are an important tool to help prevent the spread of infectious diseases like COVID-19. Despite their importance, it can be difficult to get such important medicine to everybody who needs it. We developed a painless vaccine patch that can make vaccines easier to transport. It could also increase access for everyone, especially those who are scared of needles! In this study, we wanted to determine if our vaccine patch could produce an immune response, increasing our bodies’ protection. We measured the amount of antibodies produced by the immune systems in mice who received the ..read more
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How can polar bears survive longer in a changing climate?
Science Journal for Kids
by Elitsa
1M ago
Abstract Polar bears are decreasing in number because of climate change. Polar bears depend on Arctic sea ice to hunt for their food. In a warming climate, sea ice is disappearing. Because of this, many polar bears around the Arctic are expected to disappear. Are there any places in the Arctic where polar bears might have a chance to survive when the sea ice disappears? What would those habitats look like? Would the polar bears that live there look or act differently? We found a group of polar bears in Southeast Greenland that live in fjords. They use ice from glaciers as well as sea ice to hu ..read more
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What can termites teach us about better building materials?
Science Journal for Kids
by Elitsa
1M ago
Abstract There is a global need for more sustainable and environmentally friendly construction materials. The large, stable mounds that termites build for their homes are inspirational! Termite mounds form when the termites mix soil with their saliva. This mixture contains simple sugars that act like glue and give it stability. Cassava is a starchy root vegetable that also contains simple sugars. To mimic termite mounds, we mixed soil with hot paste made from cassava flour. Then, we made bricks containing different amounts of cassava flour paste, from 0% to 6%. We tested the physical propertie ..read more
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Can a spray make our crops better?
Science Journal for Kids
by Elitsa
2M ago
Abstract Did you know that the first genetically modified crop was a tomato with delayed ripening? Genetically modified organisms (GMOs) have been around for decades now. And they offer a lot of benefits, such as an increased food supply, resistance to diseases, and more. Yet there are a few downsides as well. Producing them takes a lot of time and is often expensive. Plus, many people have concerns about their safety, since they include foreign DNA in their genome. But what if we can alter the crops without changing their genome?  We tried using bioactive molecules which can change cell ..read more
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How does sunscreen make corals sick?
Science Journal for Kids
by Elitsa
2M ago
Abstract Picture yourself diving into a tropical ocean. The sun is bright, and the water is clear and warm. What do you see? Colorful fish, playful dolphins, waving seaweed? Maybe you even see something that looks like a beautiful underwater garden – a coral reef!  Coral reefs are important habitats for a huge diversity of animals. But sadly, warming oceans and pollution threaten most coral reefs. An example of this threat is actually sunscreen! Oxybenzone is a chemical found in many sunscreens that can harm corals and other animals. But scientists didn’t know exactly how oxybenzone harme ..read more
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How are aging and gut bacteria related?
Science Journal for Kids
by Elitsa
2M ago
Abstract We know that bacteria can be harmful and can cause a lot of diseases. But did you know that not all bacteria are bad? In fact, there are trillions of bacteria inside us that help us to live! These bacteria make up the gut microbiome. We wanted to understand the relationship between our gut bacteria and how we age. We found that as we get older, the different types of bacteria in our gut microbiome change. We also discovered that diseases and medication can affect this change. Knowing more about how our gut bacteria work can help us live healthier lives! The post How are aging and gut ..read more
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Why do sharks sleep?
Science Journal for Kids
by Elitsa
2M ago
Abstract We all know what it feels like when we have not had enough sleep. You might feel tired, have trouble concentrating, or even be grumpy and irritable. Despite it being such an important part of our daily lives, sleep still remains a bit of a mystery! To help answer the question of why we sleep, scientists have started researching sleep in other animals. This can help us understand how and why sleep evolved. Sharks are hundreds of millions of years old. In fact, they are the oldest living group of jawed vertebrates! Because of this, we think they could help unlock important information a ..read more
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How can we make sure to catch only the fish we want to eat?
Science Journal for Kids
by Elitsa
3M ago
Abstract How much do you think seafood is worth? Would it surprise you to know that the world’s seafood market was worth over $250 billion in 2021?! And it’s not just money. 3 billion people (over 1/3 of the world’s population) rely on seafood as their main source of protein.  But the way that we fish is harming marine life. Bycatch, where animals like sharks and turtles are accidentally caught, is a big problem. We urgently need to find solutions! We wanted to find out whether we could use lights to make gillnet fishing better. Could using illuminated nets reduce the amount of bycatch?&n ..read more
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What can we learn about aging from naked mole-rats?
Science Journal for Kids
by Elitsa
3M ago
Abstract Did you know that naked mole-rats don’t age the same way humans and other mammals do? These incredible rodents don’t seem to age physically and they are resistant to age-related diseases. That’s why they can live over 30 years! Scientists are trying to understand how aging works in naked mole-rats so that they can better understand aging in humans. We conducted a DNA analysis of naked mole-rat tissue to find out if their DNA shows signs of aging. We discovered that naked mole-rats do age on a molecular level like other mammals. Identifying where the DNA changed in naked mole-rats allo ..read more
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