What tool do we use to measure mass?
balance scale
Matter that does not have a definite shape or volume. Particles are free to move around anywhere.
gas
Figure this out. What's the VOLUME of a shoebox that's 2 cm long, 2 cm wide, and 1 cm tall.
4 cm3
which units do we measure mass in?
grams or kilograms
What would allow you to add more solute to a solution?
stirring it more
Is a bag of jelly beans a simple mixture or a solution?
simple mixture
Anything that has mass and takes up space.
matter
Tim is making Kool-Aid. What is the powder called that dissolves in the water?
solute
What is the universal solvent?
water
A bowl of soup has a mass of 45 grams. It happens to freeze overnight. What is the mass when it is frozen?
45 grams (mass does not change)
A measure of how much matter there is in an object.
mass
Matter that has a definite (FIXED) volume but no definite shape. It flows freely. Particles are randomly arranged but close together.
liquid
Where does the ocean get most of its energy to evaporate?
the Sun heating the ocean
particles are well separated, with no regular arrangement
gases
What do we call the ability to float?
buoyancy
Materials can be separated in...……..
a simple mixture
Matter that has a definite shape and a definite volume. Particles are close and arranged in a pattern.
solid
What property is found by dividing mass by volume?
density
all particles do this
vibrate
A gas expanding to fill its container is describing what property?
volume
What do we call the substance in which a material can be dissolved?
solvent
Scientists determine if a material is a solid, liquid, or gas by...…………………………….
the arrangement or movement of the particles (molecules)
What has an effect on the measurement of weight?
gravity
What is the type of energy needed for particles in water to change their arrangement?
heat
Dew forms when...………………….?
water vapor is cooled