Matter Basics
Atoms
Phases of Matter
Thermal Energy
Mixtures and Solutions
Picture This!
100
What do we call anything that has mass and takes up space?
Matter
100
What tiny particles make up all matter?
atoms
100
What are the three common phases of matter?
solid, liquid, gas
100
When thermal energy is added, do particles generally move faster or slower?
faster
100
What do we call two or more substances combined without losing their identifying properties?
mixture
100
This particles represent which phase of matter?
solid
200
What is the amount of matter in an object called?
mass
200
True or false: Atoms are large enough to see with your eyes.
false
200
Which phase of matter has a definite shape and volume?
solid
200
What phase change occurs when a liquid loses enough thermal energy to become a solid?
freezing
200
What do we call a special mixture in which one substance is evenly dissolved in another?
solution
200
Made of atoms?
no
300
What is the amount of space an object takes up called?
volume
300
What happened to our Ziploc bag when we trapped air inside it?
it expanded because air takes up space.
300
Which phase has a definite volume but takes the shape of its container?
liquid
300
When ice melts, is thermal energy being added or removed?
added
300
Complete this sentence: All solutions are mixtures, but not all mixtures are ________.
solutions
300
mixture or solution?
mixture
400
Which has more volume: a large empty cardboard box or a small rock?
the cardboard box
400
A rock, a glass of water, and the air in a balloon all have what tiny building blocks in common?
atoms
400
Which phase has no definite shape or volume and expands to fill its container?
gas
400
What phase change occurs when a gas loses thermal energy and becomes a liquid?
condensation
400
Why is trail mix an example of a mixture?
easily seperated
each part keeps its physical properties
all parts can be identified
400
Is the water gaining thermal energy or losing it?
gaining
500
A student says air isn't matter because we can't see it. What two properties prove that air is matter?
It has mass and takes up space.
500
Sugar dissolves in water until we can no longer see it. Does this mean its atoms have disappeared?
No. The sugar's atoms are still present.
500
Both liquids and gases take the shape of their containers. What is one important difference between them?
A liquid has a definite volume, but a gas does not.
500
During our food-coloring experiment, the coloring spread faster in hot water than in cold water. Explain why.
Particles in hot water move faster because they have more thermal energy
500
When two substances are mixed together without spilling or losing anything, what happens to their total mass?
the total mass stays the same
500
Mixture or Solution
solution