Matter
Everything you can and cannot see
What is matter?
These materials can come from plants, animals, or minerals
What are natural materials?
Give an example of an object that is the opposite of resistant
A fragile object is _____
-glass
-mirror
-coffee cup
The amount of matter something contains
What is mass?
This force attracts everything to the centre of the Earth
What is gravity?
The two physical changes in matter
What are state and shape?
These materials undergo chemical processing
What are manufactured materials?
Name the property by which some materials return to their original shape after you stretch them
What is elasticity?
The amount of space something occupies
What is volume?
In magnets, two opposite poles will ___________
What is attract each other?
The relationship between mass and volume
What is density?
This material is manufactured from oil, coal, and natural gas
What is plastic?
Chalk is a ______ material
What is a soft material?
Low density objects do this in water
What is float?
The opposite force of gravity inside a liquid
What is buoyancy?
The unit of measurement for mass
What are grams or kilograms?
This natural material comes from an insect
What is silk?
-from the silkworm
Give an example of a thermal insulator
-oven gloves
-water
-woollen gloves
-woollen clothes (like a jumper)
-plastic
-
The unit of measurement for volume
What are litres or millilitres?
You cannot skateboard on grass because
There is too much friction?
The unit of measurement for density
What is kg/l (kilograms per litre)?
A material that does not disolve is this
What is insoluble?
An object that reflects blue light and absorbs red, green, yellow, orange, and violet will appear
What is blue?
A 1kg bag of feathers and 1kg bad of rocks have the same ________ and different _________
same mass
different volume and density
Give an example of a permanent change in shape because of force
-Plasticine in arts and crafts
-Starting a fire using the friction of two sticks
-Dropping a tomato from 2 meters