What are the three basic states of matter?
solid, liquid and gas
What is the force that slows down or stops the motion of an object? It is the opposing force.
Friction
When a plant releases water into the atmosphere
transpiration
Fred has an apple with a mass of 50g. He peels and cores it and then cuts it into 10 slices. If he puts all the slices the core and the peel back on the balance scale what is its mass now?
50g
Which state of matter has a definite volume but an indefinite shape?
Liquid
Any form of water that falls from the clouds to Earth
Precipitation
If the tops were removed from the cylinders what would happen?
The gas would fly out of the container
What does this picture represent?
Solid
When water collects in a river, a lake, a pond or an ocean we call this
collection
Lightning is an example of a...
Plasma
Physical or Chemical Change-Fireworks Exploding
Chemical Change
Name the 4 forms of precipitation
Rain, Sleet, Snow and Hail
Name the 4 main parts of the water cycle
Evaporation, Condensation, Precipitation and Runoff
What happens to particles of matter when I add heat?
The particles get faster
Milk and gelatin (Jello) are examples of
Colloids
Which state of matter has an indefinite shape and an indefinite volume?
gas
A change in speed and direction is..
acceleration
What are three indicators of a chemical change?
fizzing, change in odor, change in color, change in temperature
After water precipitates one of two things happen to it, those are...
Runoff or Groundwater
A push or a pull on an object.
Force
Physical or Chemical Change-A Rusting Bicycle
Chemical Change
What is anything that takes up space and has mass?
Matter
Physical or Chemical Change-Tearing Paper
Physical Change
Water vapor condenses because it
Cools
What is the speed of a car that traveled 100 miles in 2 hours?
50 m/hr
How much force is needed to move a 500 kg elephant at 2 m/s/s?
1000 N
A gas turning into a liquid is called
condensation
The speed of molecules determines the
temperature
Physical or Chemical Change-A Rusting Bicycle
Chemical Change
A pig has a mass of 200g and a volume of 100mL. What is the pigs density?
2 g/mL
When liquid changes to a solid it is called the _______ point.
Freezing
A class is playing tug of war. One side is pulling with 20N of force the other side is pulling with 20 N of force. What is the net force?
0N- it is balanced
Speed plus direction is...
velocity
Can matter change from one state to another without changing its chemical composition?
Yes-Water can!
A change in position over time is..
motion
When you freeze water as a liquid you get
a solid
A liquid turning into a gas is called
evaporation
What does this picture represent?
Gas
The water cycle is powered by
the sun
Bouncing a ball on the ground and having it bounce back is an example of which of Newton's Laws?
3rd- every action has an equal but opposite reaction
Which state of matter has a definite shape and a definite volume?
Solid
Physical or Chemical Change-Rotting Apples
Chemical Change
Water that soaks into the ground is called
groundwater
When you add heat to water as a solid you get
liquid
What is Newton's 1st Law?
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force.
What does this picture represent?
Liquid
The steam coming off the pot of boiling water is an example of....
a liquid becoming a gas
Water evaporates because it
Heats up
What is the force that pulls all things down toward earth.
Gravity
All changes in the state of matter of a substance requires
Energy
The amount of matter in an object?
mass
If an object has particles that are moving very slowly, the object's temperature is probably
cold
After condensation, if a cloud gets to heavy it
Precipitates
John has a 100 mL container of water. To that he adds marbles which raise the volume to 150 mL. What is the volume of the marbles?
50mL