Properties of Materials
Brick doesn't break easily. It is ________.
resistant
What is buoyancy?
Buoyancy is a force that acts in the opposite direction to gravity on objects immersed in liquid.
________ do not have a definite shape, but they do have a definite volume.
liquids
What is a mixture?
two or more materials
What is volume?
The amount of space something occupies.
Plasticine changes shape easily. It is __________.
flexible
What is magnetism?
Magnetism is an act of attraction or repulsion.
______ do not have a definite shape or a definite volume.
Gases
Is everything in the world made up of matter?
Yes
Volume is measured in what unit?
in milliliters (mL)
Water can pass easily through a sponge because sponges are _______.
absorbent
What is friction?
Friction is a force that acts in the opposite direction to the direction of movement.
______ have a definite shape and a definite volume.
Solids
What is the definition of physical change?
When matter changes shape, size, or state.
Mass is measured in which units?
in grams (g)
Water cannot pass through an umbrella because umbrellas are _________.
waterproof
What is gravity?
Gravity is a force that attracts all objects towards each other.
Does iron have a higher or lower density than water?
higher
Does a swimming pool have a greater volume than an ocean?
No
A pencil doesn't change shape easily. It is ________.
rigid
What is mass?
The amount of matter something contains.
Does a car have a greater or smaller mass than a bicycle?
greater
How do you calculate density?
Divide the mass of an object by its volume.