4th Science Word Scramble
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Question | Answer |
How much of the earth is covered by water | three-fourths |
inventor of the phonograph | Thomas Edison |
Why do birds migrate? | they cannot survive the winter in cold climates |
used to locate icebergs and submarines | sonar |
sound is produced when..... | an object vibrates |
the two gases that make up water | hydrogen and oxygen |
water in the gaseous state | water vapor |
inventor of the telephone | Alexander Graham Bell |
animal that hears the highest frequencies | bats |
sound waves travel the fastest through which state of matter | solid |
Does sound travel faster or slower than light? | slower |
part of the ear that contains the hammer, anvil, and stirrup | middle ear |
snail-shaped part of the ear that contains the organ of hearing | cochlea |
reflected sound that is heard again | echo |
What are clouds made of? | water and air |
anything that takes up space and has weight | matter |
process where water vapor turns back to a liquid | condensation |
boiling point of water | 212 degrees F |
three states of matter | solid, liquid, gas |
air has weight so it exerts..... | pressure |
freezing point of water | 32 degrees F |
tiny particles that make up molecules | atoms |
process where water turns from a liquid to a gas (water vapor) | evaporation |
carries the message of sound to the brain | auditory nerve |
the lowest frequency that a human can hear | 20 times per second |
vibrations of the vocal cords produce.... | speech |
Is sound a form of energy? | yes |
Can sound waves travel through empty space? | no |
when an object vibrates very rapidly the sounds produced have a .... | high pitch |
Do bats see with their ears? | yes |
bossy bird that plants oak trees | blue jay |
singing bird that mimics | mockingbird |
bird with an extra-long tongue to eat insects | woodpecker |
chubby bird that nests in unusual places | wren |
bird that walks headfirst down trees | nuthatch |
tiny bird that can fly backward | hummingbird |
bird that hangs upside down | chickadee |
spangled bird found in every part of the U.S. and Canada | starling |
Why does a low-frequency sound have a low pitch? | the object vibrates slowly |
Why are feathers important for birds? | to keep warm; to fly |
Created by:
vwalker5
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