Shared Flashcard Set

Details

Science Test 6
Mrs. Hooten's 4th Grade
40
Science
4th Grade
01/15/2013

Additional Science Flashcards

 


 

Cards

Term
a reflected sound that is heard again
Definition
echo
Term
the snail-shaped part of the ear that contains the actual organ of hearing
Definition
cochlea
Term
used for determining the depth of the water and locating objects in the sea
Definition
sonar
Term
_____ ears are better than one because they help you tell which direction a sound is coming from.
Definition
Two
Term
inventor of the phonograph
Definition
Thomas Edison
Term
inventor of the telephone
Definition
Alexander Graham Bell
Term
the man who proved that sound waves travel only through matter
Definition
Robert Boyle
Term
Sounds travel fastest through ______.
Definition
solids
Term
Sound travels ________ than light.
Definition
slower
Term
Sound is a form of ________.
Definition
energy
Term
Sound waves cannot travel through ____________.
Definition
empty space
Term
Speech is produced by the vibrations of the ____________.
Definition
vocal cords
Term
The ________ ear includes the hammer, anvil, and stirrup.
Definition
middle
Term
The ___________ carries the message of sound to the brain.
Definition
auditory nerve
Term
When an object vibrates very rapidly, the sounds produced have a ______ pitch.
Definition
high
Term
The ________ frequency that the human ear can hear is 20 times per second.
Definition
lowest
Term
________ and ________ hear the highest frequency sounds.
Definition
Bats and dolphins
Term
Materials with soft, uneven surfaces tend to ________ sound waves.
Definition
absorb
Term
The ______ "sees" with its ears.
Definition
bat
Term
________ are the only animals that have visible ears.
Definition
Mammals
Term

Be able to label the following parts of the ear:

 

auricle, eardrum, anvil, stirrup, cochlea

Definition
See diagrams on page 137
Term
The singing bird that mimics other birds.
Definition
mockingbird
Term
The bossy bird that plants oak trees.
Definition
Blue Jay
Term
The bird that walks head first down trees.
Definition
nuthatch
Term
The spangled birds brought from Europe that are now in every part of the United States and Canada.
Definition
starling
Term
The bird who uses his extra long tongue to probe holes for insects.
Definition
woodpecker
Term
The chubby little bird that cooses unusual places to next.
Definition
wren
Term
The cheerful bird that can hang upside down on a branch.
Definition
chickadee
Term
The tiny bird whose name reminds you of the sound its furiously vibrating wings make.
Definition
hummingbird
Term

Be able to identify the following birds:

 

Baltimore oriole, grouse, lark bunting, and wren

Definition
See pages 79, 125, 141, and 147
Term
The process by which water vapor turns back to liquid is __________.
Definition
condensation
Term
Clouds are made up of air and _______.
Definition
water
Term
The process by which liquid water becomes water vapor is ____________.
Definition
evaporation
Term
Anything that takes up space and has weight is _________.
Definition
matter
Term
Because air has weight, it exerts ________.
Definition
pressure
Term
The particles which make up molecules are _________.
Definition
atoms
Term
The boiling point of water is _______.
Definition
212oF
Term
Water is made up of hydrogen and ________.
Definition
oxygen
Term
The freezing point of water is _______.
Definition
32oF
Term
Matter can exist in three states: solid, liquid, and ______.
Definition
 gas
Supporting users have an ad free experience!