REVIEW

 Prediction:

 A guess of what will happen

 Hypothesis:

 An educated guess

 Observation:

 Using your senses to collect information

 Vial:

 A small glass container to hold liquids

 Liquid Solution:

 A mixture in which one substance dissolves in another

 Variable:

 Something that is changed in an experiment

 Control Factors:

 Something that is not changed in an experiment

 Diffusion:

 A gradual mixing together of liquids or gas

 Density:

 The amount of matter in a certain volume

 Contaminate:

 To make unclean

 Mrs. Davidson wants to see what material is more dense, orange or purple. She puts a drop of purple in the orange vial and it goes down. She puts a drop of orange in the purple vial and it goes down. Mrs. Davidson concludes that the orange is more dense than purple. Is she correct?

 When you mix different colored concentrates of the same density, the order in which you add colors matters.

 Liquids that are less dense sink to the bottom

 Liquids that are more buoyant sink to the bottom

Drops/LiquidsBlueGreenBrown Blue Green Brown Green Blue