What caused the crayons to melt?
Heat from the hair dryer caused the crayons to melt
Were the crayons heated or cooled?
Heated
Describe how the crayons changed?
The crayons were solid, when heat from the hair dryer was added the crayons melted and turned into liquid. They changed state of matter from solid to liquid.
What material will freeze when you cool it?
milk in glass
a plastic milk carton
a glass milk bottle.
Hector cooked some vegetables on a stove. The vegetables became brown and soft. What was the effect of cooking on the vegetables?
The vegetables changed from liquid to solid
The colour and the texture of the vegetables changed
The vegetables turned black and changed into ashes
look at the snow and the wax, What patterns do you see?
The materials changed from solid to liquid.
Describe how the wood changed?
It changed from brown to black then into a different material (ashes). It changed material completely
Tell what caused the wood to change?
The heat from the fire caused the wood to burn and change material.
Explain whether this change is reversible or irreversible.
Irreversible, once burning has taken place the ash cannot be changed back into wood. The change is permanent.
True or false? The material changes.
False, the state of matter changed.
True the material has completely changed.
The colour changed when it melted...
True, it's changed to brown.
false. It's the same colour as when it was solid.
What is the cause of change? Put in the correct order
Burning cooking melting
Melting cooking burning
Cooking melting burning
