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Week 3

Across
The smallest unit of a substance that has all the properties of that substance.
Is a type of mixture that has two or more different substances and you are able to see the different substances.
A form of energy that flows from hot objects to cool objects. It flows from one object to another because of their difference in temperature.
Down
The ability to do work. It is how things change and move. It's everywhere around us and takes all sorts of forms.
Is a type of mixture that has two or more different substances but appears to only be one substance.