Water Treatment
What process removes the biggest particles from dirty water?
Filtering
What do we call the liquid part of a solution?
Solvent
Can an unsaturated solution dissolve more solute?
yes
Melting ice is a reversible or irreversible change?
Reversible
What state of matter is ice?
Solid
What is added to remove the smallest particles from water?
chemicals
What is the dissolved substance in a solution called?
Solute
Has a saturated solution reached its maximum capacity?
Yes
Toasting bread is a reversible or irreversible change?
Irreversible
What state of matter is apple juice?
Liquid
What is added to remove microbes from water?
Chemicals
Which has a higher concentration: a little salt or a lot of salt?
A lot of salt
Which solution can no longer dissolve more solute?
Saturated
Baking a cake is a reversible or irreversible change?
Irrreversible
What state of matter is steam?
Gas
Put these in order:
Filtering → Remove microbes → Remove smallest particles
Filtering → Remove smallest particles → Remove microbes
What is the most common liquid used as a solvent?
water
A cup of water still dissolves more sugar. Is it saturated or unsaturated?
Unsaturated
Name one way to speed up dissolving.
Stirring or heating
What is the name of the process when ice changes into water?
Melting
Why must water be cleaned before people drink it?
To remove dirt, particles, and harmful microbes.
What does concentration mean?
The amount of solute dissolved in a solvent.
A student keeps adding salt, but it stays at the bottom. What type of solution is it?
Saturated
Why is melting ice reversible?
It can change back into ice when frozen.
Name all three states of water.
Solid (ice), Liquid (water), Gas (steam)