Physical Properties
This measurement tells how much matter is inside an object, and scientists measure it using a balance in grams.
What is mass?
A combination of two or more materials where each material keeps its original physical properties, like a bowl of Chex Mix.
What is a mixture?
Friction is a contact force that always acts in this direction relative to a moving object.
What is the opposite direction?
If an object sinks in water, its relative density is greater than water. If it does this, its relative density is less than water.
What is floats?
A special kind of mixture where one substance dissolves evenly into another, like salt water.
What is a solution?
Compared to a smooth tile floor, a rough carpeted floor will produce this amount of friction on a rolling toy car.
What is more friction?
Matter exists in three primary states: solids, liquids, and this state, which has no definite shape or volume.
What is gas?
If you mix 10 grams of sand and 100 grams of water, the total mass of the mixture will be exactly this amount.
What is 110 grams?
Scientists measure friction using this measurement.
What are newtons?
When sugar is placed in warm water and stirred, it seems to disappear because it has this property.
What is solubility?
To separate a mixture of iron filings and wooden shavings, you should use this physical property.
What is magnetism?
This can be used to reduce friction (example: what you might add to a bike chain to make it glide better)
What is oil (or a lubricant)?