Leaf Disk Investigation

How many leaf disks do you punch out of the spinach leaf?

• 10

• 20

• 2

• 1

How much water do you add to each beaker?

• 250ml

• 20ml

• 200ml

• 500

How many scoops of sodium bicarbonate (baking soda) do you add to the 200ml of water?

• 1 scoop

• 20 scoops

• 5 scoops

• 2 scoops

How many drops of soap solution do you add to the 200ml beaker of water?

• 20 drops

• 15 drops

• 10 drops

• 5 drops

How many leaf disks do you place in the 10ml syringe?

• 20

• 15

• 10

• 5

How much sodium bicarbonate solution do you collect with the 10 ml syringe?

• 10ml

• 200ml

• 8ml

• 15ml

With your sunken leaf disks in front of the light, How often do you count the floating disks?

• Every minute

• Every 10 minutes

• Every 2 minutes

• Every 5 minutes