Solids Liquids Gas and Density

What is the formula for density?

• D=m/v
• D=m x v
• D=v/m
• D=m+v

What state of matter is represented here?

• solid
• liquid
• gas
• plasma

What state of matter is represented here?

• solid
• liquid
• gas
• plasma

What is density?

• A measure of how heavy something is.
• a measure of the amount of matter in a certain space.
• a measure of the mass of a substance
• a measure of how much space something occupies

What 2 things do we need to know to find density?

• mass and velocity
• length and width
• mass and volume
• mass and state

How are the particles in a liquid different than the particles in a solid?

• They don't move.
• They can slide past each other.
• They can change shape.
• They have less energy.

Why does hot air rise?

• The particles are smaller.
• The particles are bigger.
• It has more density than cold air.
• It has less density than cold air.

What determines state of matter?

• The size of particles.
• a chemical reaction
• the energy of the particles
• how heavy the particles are

How can we tell if an object has less density than water?

• It sinks.
• It floats. 
• It is a liquid.
• It rusts.

Which of these will float in water?

• mercury 13.6g/ml
• asphalt 1.2g/mL
• sodium 0.97g/mL
• none of the above