Name three man made materials
Glass, ceramics and plastic
Name four different types of materials
Plastic, wood, glass, fibres.
What is density?
The amount of mass of an object in a unit of volume
Oil is more / less dense than water
Less
What are forces?
Forces can change an object’s movement or direction of movement
Look at the image. Push or pull?
Push
Tell the definition of gas.
Does not have a fixed shape or volume. They fill all the space around them
Name the properties of glass
Transparent, fragile, rigid
What is mass?
The amount of matter in an object
Name three solids
Desk, rock, steel ball, door, etc.
A physical characteristic of a material is called?
Property
T or F. Liquids have a fixed shape but have a fixed volume
False. Liquides don’t have a fixed shape but have a fixed volume
T or F: plastic is a natural material
False: it is man made
What is matter?
Anything with mass and volume
What is buoyancy
The ability of an object to float in liquids and gases
Oil has more / less density than alcohol
More
What is gravity?
A force that pulls objects with mass towards each other
What are the three states of matter?
Solid, liquid, gas
Metals are _____ and _____
Strong and hard
T or F: solids have a fixed shape and volume
True
Name water as a liquid, solid and gas
Rain, ice cube, vapour
How is glass made?
By heating sand to a very high temperature until it melts
Name three objects attracted by a magnet
Paperclip, scissors, coin, etc
The amount of space an object occupies is called?
Volume