Candi's teacher told the class that all matter is made of particles. She said these particles are smaller than human eyes can see. Candi did an experiment to show that the tiny particles exist and move.
Procedure:
1.
Measure 100 mL of cool water into a jar. Measure the weight of the water and jar.
2.
Put four drops of food coloring into water. Do not shake or move the jar.
3.
Observe the drops of color. Have any changes occurred? Record the results.
4.
After one hour, check the jar and record the results.
5.
Let stand overnight in the warm classroom.
6.
Observe the jar. Measure the weight of the water and jar. Record the results.
After letting the jar sit out overnight, Candi notices that the color is spread out all over the jar of water. She decides to repeat the
experiment using two other liquids. She uses milk that weighs 1.03 grams per milliliter and a clear vinegar that weighs 1.01
grams per milliliter.
Candi knows that the water contains tiny particles that move and are too small to be seen. Which sentences explain how she knows
this?