Share 6th Sci Unit 2
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What are the three states of matter?
Solids, liquids, and gases
What is the melting point of ice?
Above 0 degrees
What is the boiling point of water?
100 degrees
What's the difference between boiling and evaporation?
Boiling - all particles boil, evaporation - particles at the surface evaporate
We usually can't see or feel gases. Do they have mass?
Yes, they do.
Name something that conducts heat well.
Metals
Name something that doesn't conduct heat well.
Wood, plastic, etc.
What is an electrical conductor?
Something that allows electricity to flow
Name something that conducts electricity.
Metals, water, etc.
Name a reversible change.
Boiling and condensing
Name a irreversible change.
baking a cake, burning, etc.
Name a physical change.
boiling, cutting, condensing, folding, etc.
Does the solute dissolve in the solvent or does the solvent dissolve in the solute?
the solute dissolves in the solvent
The solute and solvent together make a ____________.
solution
What does dissolve mean?
To mix evenly with another substance
What are two ways to make a substance dissolve faster?
Stir, heat it, add more solvent
