Vocabulary
Density
Phases of Matter
Chemical Changes
Potpourri
100
What is matter?
Anything that has mass and volume.
100
Why did the corn syrup go to the bottom of the cylinder?
It was the most dense.
100
What are the three phases of matter?
Solid, liquid, and gas.
100
what is an example of a chemical change?
Mixing vinegar and baking soda and making carbon dioxide.
100
What is a molecule?
A group of atoms
200
What is a chemical reaction?
When two substances combine to create a new substance.
200
. . . . . . . . . . . If these are molecules in this space, is there a lot of density or a little?
Little density.
200
What is the scientific abbreviation for water?
H2O
200
What is an example of a physical change?
Ice melting from a solid to a liquid (example)
200
What is the smallest building black of all matter?
An atom
300
What is density?
The amount of matter within a certain volume.
300
Which is more dense, a solid or a gas?
A solid.
300
What is solid H2O called?
Ice
300
What do you get when you mix baking soda and vinegar?
Carbon Dioxide
300
Which has the least amount of kinetic energy? A solid, liquid, or gas?
Solid
400
What is mass?
The amount of matter an object has.
400
Which is more dense, a liquid or a gas?
A liquid.
400
Water can change phases when enough _______ is added or take away.
Heat
400
When mater changes phases, do it's molecules change or stay the same?
Stay the same.
400
What makes up a water molecule?
Two hydrogen atoms and one oxygen atom.
500
What is volume?
The amount of space an object takes up.
500
Is there a lot of space between molecules if something is very dense?
No
500
What is kinetic energy?
The energy of motion.
500
Evaporation is an example of a physical change or a chemical change?
Physical change.
500
Which has the most kinetic energy? A solid, liquid, or gas.
Gas
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