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Science Vocab/wb pages unit 1 (4th grade)

Froggy Jumps

complete the froggy jump to learn the unit vocab

Descarga la versión para jugar en papel

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Froggy Jumps

Science Vocab/wb pages unit 1 (4th grade)Versión en línea

complete the froggy jump to learn the unit vocab

por Kim Medycki
1

A real world limit on a solution for example safety needs, time, money, or materials

2

the desirable feature of a solution

3

the process of designing new or improved technology

4

figuring out what when wrong with a solution

5

a test that does not give any advantages to the conditions or objects being tested

6

to make a solution as good as possible

7

anechoic means

8

an anechoic chamber is used to test_____________ the walls of the chambers are designed to absorb sound waves.

9

ear trumpets with longer tubes helped ______________ sounds. they we easier to hold and direct towards the sound.

10

early ear trumpets collected and directed sound waves to the listeners ear. the device works best when the sounds were _________________. the small end is held near the ear.

11

a _________________is often used in medicine, sound travels from the person to the cup, which increase the volume of the sound. the sound then moves through the tubes to the users ears.

12

concrete listening posts collect and focus sound like a curved mirror. before _____________ it was used to listen for approaching enemy planes.

13

an ___________ testing facility is similar to a wind tunnel. it is used to test vehicles and objects that move through water to make sure they are safe and do not leak. it is also used to model movement through air.

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