True or False
Solids have a definite volume and a definite shape.
True.
True or False
Liquids have a fixed shape but not a fixed volume.
False
Liquids have a fixed volume not a fixed shape.
True or False
Gas has no definite volume and no definite shape. ?
True.
What is the most dense state of matter? Molecularly.
Solids.
How can you distinguish between pure substances and mixtures?
Pure substances cannot be separated into their parts while mixtures can be separated.
True or False
The particles in a solid are less active than gas.
True.
True or False
Particles in gas are more active than solids but not as active than liquids.
True.
If a balloon is heated, what happens to the pressure of the air inside the balloon if the volume remains constant?
increases
What is A theroy that explans the physical properties of matter and the motion of particles.
Kenetic Theory.
A student made trail mix to take on a hiking trip. They decided to add peanuts, chocolate pieces, cereal, and popcorn to it. Which of the following is true about the trail mix?
The trail mix is an example of a heterogeneous mixture.
What is it the point called when a soild turns into a liquid.
EX: Ice a 32°
Melting point
What point is it called when a liquid is heated up so much that the liquid turns into a gas.
EX: 212°
Boiling point.
What is it called when a soild turns direcly into a gas.
EX: Dry Ice
Sublimation.
What state of matter covers over 75% of the Earth.
Liquid.
Which of the following examples is NOT a pure substance?
When a solid melts, what state of matter dose it turn into.
Liquid.
What is it called the abillity to exert upward force on a object in a Liquid.
Bouyancy.
What happens to the pressure of a gas inside a container if the temperature of the gas decreases?
decreases
What is the least dense state of matter
Gas
What are is a example of a solid.
Anything that has a definate shape and den]finate volume.
What tempature dose a liquid,"water" become a solid "Ice".
True or False
Gas particle are less active than solids but more active than liquids.
False.
"gas particles are more active than solids and liquids."
If the volume of a gas stays at a constant but the container is heated what will happen to the pressure.
EX: A pressure cooker.
The pressure will increase.
Both mixtures can be separated into their original ingredients.