Page 80 - science
P. 80
Science fact
Eyes and hearing?
Many animals
1 Your teacher will make a sound. Listen to this have two ears.
carefully. The praying
2 Now close your eyes and listen to the sound mantis only has
again. one ear. This is
3 Can you hear the sound clearer with your eyes in the centre of
open or closed? its chest.
Stretch zone
Do you think our eyes and ears work together?
About 70 million people in the world use a language
called sign language to communicate.
This child is
signing ‘thank you’.
Key idea 4 Making Sounds
We use our
Check how much you know. ears to hear
Try the puzzles on pages 82–83. sounds.
81
■ For more activities, go to Workbook 1 page 81.
