States of matter
Physical vs chemical changes
Particles
Solid, liquid or gas?
Fill the blank
100
What is evaporation?
Evaporation occurs when a liquid becomes a gas.
100
Is melting snow a physical or chemical change?
Physical
100
What is this?
What is a solid.
100
Is metal a solid, liquid or gas?
Metal is a solid.
100
A ____ takes the shape of it's container
-liquid
-solid
-gas
liquid
200
What is Melting?
Melting occurs when a solid becomes a liquid.
200
Is digesting food chemical or physical change?
Chemical change.
200
What particles are these?
What are gas particles.
200
Is carbon dioxide a solid, liquid or gas?
Carbon dioxide is a gas.
200
Solids can not be ______
-poured
-tightly
-melt
poured
300
What is freezing?
Occurs when a liquid becomes a solid.
300
Is rotting fruit a physical change?
No, it's a chemical change.
300
What is this?
What are liquid particles.
300
Is water solid, liquid, or gas?
Water is a liquid.
300
Liquids can be ________.
-filled
-take
-poured
poured
400
What is solid?
A solid holds its shape unless a force is applied to it.Solids also do not flow or take the shape of their container the way liquids do. Solids can range in shape, size, and texture (how they feel). Fur on a dog’s coat is a solid, so is an icicle, and a tree stump.
400
True or false? Shredding paper is a physical change.
False.
400
Describe a gases particles.
Tiny, widely spaced, and in constant, rapid, random motion, moving freely
400
Is oxygen solid, liquid, or gas?
Oxygen is a gas.
400
A ____ expands to fill its container.
-liquid
-dog
-gas
gas
500
What is sublimation?
Sublimation is when a solid turns directly into gas.
500
True or false? Baking a cake is chemical change.
True.
500
Describe a liquid's particles.
A liquid's particles are slightly and loosely packed together.
500
Is yogurt a solid, liquid or gas?
Yogurt is a liquid.
500
Water will ________________ when it is below 0 °C.
-freeze
-gas
-poured
-liquid
freeze