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True or False: Glass is made of metal
False
Glass is made of ________
Sand
True or False: Silicon is an element
True
Elements are made of ___________ atoms (hint, it's a number)
1
True or false: The element in glass is hydrogen
False
At a recycling center, is glass sorted by color?
Yes
What element is used to make bricks?
Silicon
Crushing glass is a ___________ change
Physical
What is crushed glass mixed with at a recycling plant?
Sand
A ____________ change makes something new
Chemical
What happens after glass is mixed with sand?
Put in a furnace
Does sand melt once heated up?
Yes
When ice melts it is a ___________ change
Physical
True or false: Baking a pie is a physical change
False
__________ changes are changes in size, shape, state, or appearance of matter
Physical
___________ changes happen when matter changes into different kind of matter
Chemical
