Résultats de "Tracy Vonder Brink" dans Toutes les catégories

Take a ride on a rover with NASA as they explore the planet Mars. Learn how NASA explores Mars for evidence of life especially the existence of water. Scientists believe that life depends on water. Is it possible that Mars had life and why is it so different from Earth? Discover the tools, equipment and methods scientists use to uncover rock, water, and fossils to test as evidence of life.

Hop to it! Do you know how or why a kangaroo hops and leaps? Learn how their legs, feet, and tail help a kangaroo move which starts with bouncing! Like humans, kangaroos' legs are made for how they move! While we walk upright, they jump and leap! Kangaroos use their tail to slow down. Find out why they are the largest and most powerful marsupials!

Have you ever been sick with strep throat? It's an illness caused by bacteria that gives you a painful sore throat! Learn how doctors can diagnose it by your symptoms and a test, and how medicine can cure strep throat so you can get better. Be sure to take all of the medicine until its gone if you have strep. You might even impress your doctor on your next visit with your new knowledge!