Science Grade 4 First Term Senses at Work Concept 2 Lesson 1 2023
2.8 هزار بار بازدید -
2 سال پیش
-
science grade 4 senses at
science grade 4 senses at work pony 2023
Egyptian mongoose communicates with others by
producing sounds that seem as chatters.
These sounds tell the others to move to another place to search for food.
Dolphin Super Senses
To survive, dolphins must be able to find food and protect themselves
in the dark waters.
Senses Super Dolphins
Dolphins use a property known as “echolocation” that depends on
“echo” to locate their prey and objects in the dark water.
Echo
It is the reflection of sound waves back from hitting
a solid surface to their source.
How dolphins locate things:
1 A dolphin produces sound waves through water.
2 When these waves hit any object, they return to the dolphin as echo.
3 Echo and the strong hearing sense helps the dolphin to locate its prey.
Egyptian mongoose communicates with others by
producing sounds that seem as chatters.
These sounds tell the others to move to another place to search for food.
Dolphin Super Senses
To survive, dolphins must be able to find food and protect themselves
in the dark waters.
Senses Super Dolphins
Dolphins use a property known as “echolocation” that depends on
“echo” to locate their prey and objects in the dark water.
Echo
It is the reflection of sound waves back from hitting
a solid surface to their source.
How dolphins locate things:
1 A dolphin produces sound waves through water.
2 When these waves hit any object, they return to the dolphin as echo.
3 Echo and the strong hearing sense helps the dolphin to locate its prey.
2 سال پیش
در تاریخ 1401/08/04 منتشر شده
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