Pepper and Water
What was the first thing I put on the plate?
Water
What happened to the egg the first time in the water?
Sunk
What did we draw on the piece of paper?
Arrow
What was in the first bowl?
Water
What did I add to the water?
Pepper
What did we add to the water?
Salt
What happened to the arrow behind the glass?
Flipped backwards
Did the pennies get clean with soap and water?
No
What happened when I touched the water the first time?
Nothing
What happened to the egg the second time?
Floated
Did anything happen differently when we poured the water in?
No
What are pennies made out of?
Copper
What does the pepper represent?
Germs
What did we learn about with this experiment?
Density
What happens to light when it travels through water?
Slows down
What is in lemon juice that cleans the pennies?
Acid
What causes the pepper to move?
Surface tension
Why did the egg sink the first time?
More dense than the water
What causes the arrow to flip?
Refraction
What causes pennies to change colors?
Oxidation