The Scientific Method/Random
Measurement/Phases of Matter
Solubility
Density
Mixtures
100
Is burning wood a chemical or physical change?
chemical
100
Which phase change has a definite shape and volume?
Solid
100
The substance that is dissolved into the solution.
solute
100
formula for density
density = mass / volume
100
What is a compound?
a combination of 2 or more elements
200
When a liquid changes its phase and turns into a solid it is known as
freezing
200
Which phase of matter has no definite shape or volume?
gas
200
The substance that does the dissolving in a solution.
solvent
200
which liquid is the least dense?
oil
200
What is a mixture?
a combination of 2 or more elements
300
The dip that you use to measure liquid volume is called the
meniscus
300
1,000 millimeters = ______ meters
1
300
How do you speed up the process of a solution dissolving?
stir the solution
300
What is the difference between mass and weight?
Mass is the total matter in an object, and weight is the downward pull of an object.
300
A mixture that is NOT evenly distributed is called
heterogeneous
400
How many centimeters are in 1 meter?
100
400
What is the change from A(solid) to C(Liquid)?
melting
400
The sugar solution needs ___ grams of solute dissolved in 100ml of water at 60⁰ C to make the solution supersaturated
300 grams
400
Why do some substances float on water?
they are less dense than water
400
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
magnet
500
The change that happens because of your experiment is called the ___________ variable.
dependent
500
What is the state of matter for C?
liquid
500
Solution where more solute can still be dissolved at the given temperature.
unsaturated
500
What line segment represents only the solid state? (Diagram F)
A-B
500
Which mixture could you separate by adding water and then pouring through a coffee filter?
sand and salt, because the salt would dissolve and the sand would not