How does building a dam affect plants and animals? In part 2, compare pictures of a river before and after a dam was built across it. Move your cursor over different parts of the pictures and click to find out what happened to the plants and animals once the dam was built. Once you have finished, you...
This ebook explores the life of a monarch butterfly, including her birth in Canada, her transformation and her journey to Mexico for the winter. Students can click on the speaker icon to hear the story read aloud.
The first video shows the life cycle of humans. Use the green tabs above the video screen to find videos about chickens, kangaroos, frogs, dragonflies and butterflies. The Practice tabs have quizzes and activities.
This site has many different activities that let you explore hearing and sound. You can listen to sounds as though you have hearing loss, see how sound waves work and learn what sounds may be dangerous.
Learn about sound and how it travels through liquids, solids and gases. In part 2, build a wall of a solid, liquid or gas and then click on the trumpet player. Listen carefully and see how the wall you make affects the sound.
How do bats use sound to find insects and avoid objects in the dark? In part 2, you will learn how bats use echolocation to hunt and navigate around obstacles; after the demonstration, you will use echolocation to help the bat feed and steer through the air.
How fast does a stalactite grow? In part 2, spend time examining the different formations and features of the cave. You can learn about the formations by moving the cursor over each one. Click on the stalactite to see how a stalactite grows and forms a column with a stalagmite.