Vocabulary 1
Vocabulary 2
Lesson 2
Lesson 3
Lesson 4
100
the amount of matter that something contains
What is mass?
100
one material forming a solution with another material
What is dissolving?
100
a pan balance
What is used to compare mass?
100
when one material dissolves in another
When does a solution form?
100
cutting or grinding a substance
What can cause a physical change in a substance?
200
everything in the universe that has mass and takes up space
What is matter?
200
the ability of matter to float in a liquid or gas
What is buoyancy?
200
by sinking them in water and measuring the new level
How can we find the volume of odd-shaped objects?
200
most human bodies are less dense than water
Why do most people float on water?
200
rock candy, sugar cubes, table sugar, confectioners' sugar
What are some forms of sugar following physical changes?
300
the amount of space that matter takes up
What is volume?
300
any change in the size, shape, or state of a substance
What is a physical change?
300
multiply the length x width x height
How can you find the volume of a box?
300
submarines contain tanks that can be filled with water
What allows a submarine to travel below the water's surface?
300
a change in color or odor
What clues might show you that a new substance has formed?
400
the property of matter that compares the amount of matter to the space taken up
What is density?
400
a change that produces one or more new substances and may release energy
What is a chemical reaction?
400
it is measured in cubic centimeters
How is volume measured?
400
blimps are filled with helium, which is less dense than air
How do blimps stay up in the air?
400
energy that is released by a chemical change, such as burning gasoline
What is chemical energy?
500
a mixture in which the particles of different kinds of matter are mixed evenly with each other
What is a solution?
500
another term for chemical change
What is chemical reaction?
500
divide its mass by its volume
How can we find the density of an object?
500
any materials that are less dense than water
What kind of materials float on water?
500
heat from a chemical reaction melts the iron and other substances
How is a chemical change used to make steel?
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