Vocabulary
Matter
Something that has mass and takes up space.
Physical
Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume
Baking a cake is an example of...
Chemical reactions
Ivory soap experiment was an example of...
Physical change
Dissolve
The visual disappearance of one substance into another when they are mixed.
Chemical change
When a substance freezes, what two states of matter are usually involved?
A liquid becoming a solid.
When molecules are able to slide freely past one another, what state of matter is this?
Liquid
Magic balloon proves which law?
Conservation of Matter
Mass
A measure of how much matter is in an object.
Baking soda + vinegar
Chemical change
Fill in the blank:
8 g baking soda + 32 g of vinegar = 45 g vinegar + ______ g carbon dioxide gas
5 grams
What are the 4 characteristics of a chemical reaction?
Change in matter
Change in energy
Change in color
Elephant toothpaste is an example of...
Chemical reaction
Weight
Physical change
The tiny particles that make up everything are called
Atoms
In a burning candle, what physical changes take place?
The wax starts to melt
Foam gnomes is an example of...
Chemical reaction
What is the Law of Conservation?
Burning log
Define density
The volume of an object related to its mass
Black smoke
Hot gases are rising
Kool-Aid science was an example of (2)...
Dissolving
Physical change