HS-LS1-6
Construct and revise an explanation based on evidence for how carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules.
- Agriculture
Organic food starts to prove its worth
Organic food often comes with a higher price. But research is showing that food grown this way can be better for the environment — and possibly for us.
- Health & Medicine
Sugar makes mice sleepy
Sugar may amp up sleep-promoting cells in the brain, a new study in mice finds.
- Plants
Using plants to solve environmental problems
Problems in their communities suggested good research projects to three teens. Each wanted to tackle a different issue, from pollution to world hunger. To learn more about these issues, they turned to their local ponds, wetlands and gardens.
- Health & Medicine
For better weight control, fiber up!
Certain types of fiber suppress appetite, at least in mice. Found in fruits, vegetables, oats and barley, this fiber breaks down in the gut to release acetate. That travels to the brain, where the chemical prompts the release of hunger-fighting hormones.
- Health & Medicine
Some of chocolate’s health benefits may trace to ‘bugs’
Dark chocolate offers people a number of health benefits. A new study finds that the breakdown of chocolate by microbes in the human gut be behind some benefits.
- Health & Medicine
Low protein, longer life — for some
Eating less protein can lengthen life and improve health. That’s the message from new studies in mice and in people.
- Animals
Eating can be skin deep
In the laboratory, bottom-dwelling hagfish absorb nutrients through the skin.
