Mixing Substances
What science studies what things are made of?
chemistry
Is melting ice a chemical change?
no
What does it mean when someting is "at rest?"
It is not moving.
Does an object with many particles have more or less weight than an object with few particles?
more weight
generators
Give an example of a substance.
Ice, gold bars, diamonds
When you burn wood, what does it change into?
ash
Can an object in space move forever?
yes
What stops people from swimming to the bottom of the ocean?
water pressure/oxygen
What do switches do?
Turn stops or starts the flow of electricity in a circuit.
What is something that will settle out of water?
sand, mud/dirt, marbles, oil, etc.
What metal can rust?
iron
What has more inertia; an elephant or a mouse?
elephant
What can flow?
liquids and things made of small particles (sand)
What are wires usually made of?
copper
Name 2 solutions.
salt water, Coca-cola, sugar water, etc.
What are 3 ways to know if a chemical change has happened?
What are three kinds of force?
Gravity, magnetism, friction, contact, etc.
What doe we call a place with no air?
vacuum
What is the name of powerful static electricity you can see outside?
lightning
What did artists long ago use to make paint?
What color does copper change to when left outside?
green/blue
What does contact mean?
touch
What is the name of the tool that measures air pressure?
barometer
Is something is an electical conductor, what does that mean?