States of Matter
Sound and Light
Changes?
Newton
Simple machines
100
Has definite volume and definite shape.
What is a solid?
100
A reflected sound wave.
What is An echo?
100
A log burned in the fireplace and turned to ashes
What is a chemical change?
100
Newton has this many laws of motion.
What is 3?
100
the flag is raised using this simple machine.
What is a pulley?
200
made of two or more substances; together but not combined
What is a mixture?
200
This object is not a source of visible light?
What is the moon?
200
A solid turning to a liquid.
What is Melting?
200
This law explains why we need to wear seatbelts.
What is newtons 1st (object in motion stays in motion/at rest til acted on by another force; law of inertia.)
200
a stiff bar that rests on a support called a fulcrum; it lifts or moves the load.
What is a lever?
300
molecules in this state of matter are close together and moving slowly.
What is a solid?
300
A system that uses reflected sound waves to detect and locate objects under water.
What is Sonar?
300
Vaporization at the surface of a liquid.
What is Evaporation?
300
if you throw a ball, it will eventually fall down and come to a stop. Name the main force that is acting upon it.
What is Gravity?
300
this tool's handle is the wheel; its blade is the axle
What is a screw driver?
400
A form of matter without a definite shape or volume.
What is Gas?
400
A material that scatters light as it passes through.
What is A translucent material?
400
Any change that alters form or appearence but not the substance.
What is Physical change?
400
A golf club is swung in a sothern direction, and that is the direction the ball travels. name the law of motion.
What is the 2nd law of motion?
400
when changing a lightbulb, use this incline plane to reach it
What is a ladder?
500
A form of matter that has definite volume but no shape of its own.
What is Liquid?
500
A mirror with surface that curves inward like the inside of a bowl.
What is a concave mirror?
500
Kool-Aid turns into a popsicle.
What is Freezing?
500
This law says for every action there is an equal and opposite reaction; it explains how a rocket is launched into space?
What is Newton's third law of motion.
500
A simple machine found in the mouth.
What is A wedge?
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