Lesson plan

Hearing in animals

Summary
Listen to different frequencies and sounds through different materials and compare with how other animals hear. Play a game to show how it is hard for whales to communicate with the noise pollution in the ocean.

Science content
Biology: Features, Adaptations of Living Things (K, 1, 3, 7)
Biology: Sensing, Organ Systems (4, 5, 6)
Physics: Light and Sound (1)
Resource
Procedure

Do a selection of the activities.

Sound frequency detection to appreciate how different humans can hear different frequencies, and how animals hear quite different ranges from humans.

Sound through string to appreciate how sounds changes as it travels through different materials, and how some animals hear through the water or through the ground.

Hearing through our bones to appreciate how sound can travel through our bones, as it does in snakes and other animals that hear through the ground.

Listen to whale sounds. These sounds travel through water for hundreds of kilometers.
Whales hear through their throat, which passes the sound to their inner ear.

Whales comminucate across 100s of km of ocean. With more and more human activity in the ocean it is getting harder for them.
Play the noise pollution game.

Optional:
Sound vibration model to understand how sound travels as a wave of vibrations.
Sing a song, with accompanying ukelele or other instrument.

Notes

Brownies added made musical instruments as part of this lesson: saxophone and shaker from recycled water bottle.
Grandview did frequency detection, sound through string, then listened to animal sounds and tried to guess who made them.

Grades taught
Gr K
Gr 1
Gr 2
Gr 3
Teaching Site
Brownies
Grandview (¿Uuqinak’uuh) Elementary