Science Quarterly 2 Review

You moved a box across the room. You picked up a second box with more mass. What will you have to do to move it across the room?

• use less force to get more motion

• use more motion to get less force

• use more force to get the same motion

• use more force to get less motion

Johnny wants to dissolve a substance in water. Which would be the best way to speed up the dissolving process?

• crush the substance into very small pieces

• use cold water

• just let it sit in the water till it dissolves

• work faster

Mary wanted to know if different kinds of fertilizer would help plants grow bigger. She used the same amount of 3 different fertilizers on 5 of the same type of plants each. Did Mary conduct an experiment or an investigation?

• Investigation - because no variables were changed.

• Experiment - because there were 5 trials each

• Investigation - because she used plants.

• Experiment - because there were variables that got changed and everything else stayed the same.

What is the best tool to use separate pebbles from sand?

• your mouth

• filter

• sieve

• a magnet

Jo Jo wanted to melt some ice. At which temperature will the ice melt the fastest?

• 0 degrees

• • -15 degrees

• 25 degrees

• 67 degrees

Why won't an object move even though it is being pulled by gravity?

• It's too heavy

• the force of gravity is being balanced

• It's too strong

• the force of gravity is unbalanced

What is a control group in a science experiment?

• a group that controls everything

• a group that we look at to see what would happen if we didn't change anything in an experiment

• a group that changes

• a group that gets measured

I have a definite volume, a definite mass, and I take the shape of my container. What am I?

• solid

• liquid

• gas

• squid

Which of the following will not dissolve?

• salt

• sugar

• Kool-Aid Mix

• flour

I want to separate sand, pebbles, and iron filings. Which tools should I use?

• rock, paper, scissors

• filter, sieve, forceps

• forceps, sieve, evaporation

• sieve, magnet