School Bus Fumes
Exhaust fumes are worse inside a school bus than outside.
Good
Unpopped Popcorn
Heat affects the outer coating of popcorn kernels, making some easier to pop.
Zoo in You
The human gut has nearly 400 species of microorganisms, and microbes in the gut affect the action of …
Alcohol & Bacteria
Why does rubbing alcohol kill bacteria? (Disrupts their cell membranes)
Dental Light
Shining a blue light on teeth kills the bacteria that cause cavities.
Forgetting Dreams
Why can't we remember all of our dreams? (Happens in the deep parts of the brain, perhaps not meant …
TV Bullies
Children who watch a lot of TV are more likely to become bullies later in life.
Reefs and Sharks
Lack of sharks leads to fewer coral reefs, and superglue based on mussel adhesive.
Bird Migration
How do birds know when to migrate? (They watch day length, and then wind conditions.)
Iron-Deficient Moms
Mothers who had adequate iron levels had better parenting skills.
Gray Hair
What causes hair to turn gray? (Toxins build up and kill the pigment cells in the hair follicle.)