Show:
Planets & Stars
Weather
Sound & Light
Forces & Motion
Simple Machines
100
to spin around an axis
What is rotation?
100
less than 3% of earth's liquid water is fresh
what percent of earth's liquid water is fresh water?
100
how high or low a sound is
What is pitch?
100
a push or pull
What is force?
100
the fixed point on a lever
What is fulcrum?
200
24 hours are in a day
how much hours are in a day?
200
evaporation,condensation,precipitation,and collection are the 4 parts the water cycle
What are the four parts of the water cycle?
200
the loudness of a sound
What is volume?
200
a force that resists motion between objects that are touching
What is friction?
200
a simple machine with a wheel made around it
What is a pulley?
300
it would be 9:00 a.m. in Seattle if it is 12:00 p.m. in Atlanta
In Seattle if it's 12:00 p.m. what time would it be in Atlanta?
300
snow,rain,sleet,or hail
What are the four ways water can fall to earth?
300
the number of vibrations per second
What is frequency?
300
the measure of an object's change in positon during a unit of time
What is speed?
300
a simple machine made of a wheel and axle that turn together
What is a wheel-and-axle?
400
a huge ball of superheated gases
What is a star?
400
water that falls from clouds to earth
What is precipitation?
400
a back-and-forth movement of matter
What is vibration?
400
the location of an object
What is position?
400
true or false a spiral staircase is a type of screw
true, a spiral staircase is a type of screw
500
the star at the center of our solar system
What is the sun?
500
the study of weather
What is meteorology?
500
the bending of light
What is refraction?
500
the force of attraction between earth and other objects
What is gravity?
500
a simple machine that is a slanted surface
What is an inclined plane?