Changes to Matter
What is matter?
freeze
The length/how far something moves.
A magnet has two _____. They are North and South.
poles
What is light?
Light is energy we can see.
What are the five senses we use to observe matter?
see, hear, smell, taste, feel
Different solids melt at different __________.
a. times
b. temperatures
c. people
b. temperatures
What can you measure with a meter stick?
We can measure distance.
What metal works with magnets?
Iron
What colors are in white light?
All colors!
A __________ is two or more things put together.
mixture
What is lava?
Lava is liquid/melted rock.
What can you measure with a stopwatch?
We can measure duration.
A magnet can _____ things to it. (like pull)
attract
Some colored glass can ______ light.
a. stop
b. fiddle
c. filter
c. filter
What is a physical change?
A change to something that makes the matter look different.
When liquids freeze they ______ heat.
lose
What is duration?
A magnet can ____ things. (like push)
repel
When light hits something it ______ off it.
reflects
How it smells, tastes, color, texture, sound...
When solids melt they ______ heat.
gain
What is speed? How can we measure speed?
Speed is how fast something moves every minute/hour. We compare distance and duration.
Why can a compass help us find North?
Because the earth is like a big magnet.
Why do different things have different colors?