Solutes and Solvents
Is salt a solute or a solvent?
Solute
Is a rock a liquid, solid, gas, or plasma?
Solid
Is paper burning a physical or chemical change?
Chemical
What happens to water when it is heated?
It evaporates; turns into a gas (water vapor).
Is water in salt water a solute or solvent?
Solvent
What state of matter is helium?
Gas
Is cutting down a tree a physical or chemical change?
Physical
True or False: Hot water molecules are moving slower than Cold water molecules.
False
Is the milk in hot chocolate a solute or solvent?
Solvent
What state of matter is lightning?
Plasma
If you paint a wall, is it a physical or chemical change?
Physical
True or false all things, even cold things have heat energy.
True
Define Solvent
A solvent is the substance that things are dissolved into.
What properties does a liquid have?
A liquid has a definite size but no definite shape. It always takes on the shape of its container. the molecules in a liquid are spaced apart, flow freely, and slide over one another.
What is a physical change?
A physical change is any change that does not create a new substance. The change may alter how something looks, or its shape but it is still the same basic material.
What are the two ways you can use to speed up the process of mixing ingredients into a liquid?
Heat and stirring
Describe what a solute is.
A solute is the substance that is dissolved into the solvent.
What properties does a solid have?
A solid has a definite size and shape. Its molecules are packed close together and vibrate in place.
What is a chemical change?
A chemical change is when a chemical reaction takes place and a new substance is formed. The new substance cannot be changed back to what it was before.
Name one of the three ways heat is transferred?
Conduction, Convection, or Radiation