states of matter
What are the three states of matter?
Solid, liquid and gas
What is a raw material?
materials found in nature. From the ground or living things
true or false
Diamonds are a soft material
False. They are a hard material
true or false
Metal is an inelastic material
True
True or false
Contact forces are forces that act when we do not make contact with an object.
FALSE.
Contact forces are forces that act when we MAKE CONTACT with an object.
What is the process called when atoms go from solid to liquid?
Melting
What are man made materials?
Transformed or combined raw materials.
What is an example of a flexible material?
Rubber, etc.
Materials which do not let heat or electricity travel through them easily
Insulators
______ are forces that do not require contact
Non contact forces
The process when atoms go from gas to liquid
Condensing
What are recyclable materials?
Materials that can be used again and again
_________ are materials which are hard to break
Resistant materials
Give an example of a fragile and resistant material
Ex. Plastic is resistant. Glass is fragile
How many poles do magnets have?
What are they called?
Magnets have 2 poles
They are called north and south poles
The process when atoms go from liquid to gas
spell the answer
Evaporation/ evaporating
True or false
all raw materials can be replaced
False
only raw materials from living things can be replaced. Ones from the ground cannot.
What makes a material soluble?
If a material dissolves in a liquid
Are rocks in water soluble materials?
no. They are insoluble materials
Give two examples of contact forces
pushing a cart, Opening a door, Doing pottery, throwing a ball, etc.
The process when atoms go from liquid to solid
Spell the answer
Solidifying
What is one example of a raw material?
What is one example of a man made material?
Your examples
name the 6 properties of materials
hardness, flexibility, resistance, conduction, elasticity, solubility
Bending a rope is what type of property?
Flexibility
Earth has so much mass that its force of gravity pulls everything ________.
Towards its center.