Leaf Discs Mini Lab Video

Which of the following is NOT required to observe photosynthesis in this activity?

• Spinach leaves

• Baking soda

• A flashlight

• Dish soap

What is the purpose of adding baking soda to the water in this activity?

• To help the leaf discs float

• To clean the spinach leaves

• To provide carbon dioxide for photosynthesis

• To make the water clearer

How do you ensure the leaf discs sink in the water?

• By stirring them in the water

• By removing air pockets using a syringe

• By adding more baking soda

• By placing them under the light

Why do the leaf discs start to float after being placed under the light?

• They are heated by the light

• They react with baking soda

• They release oxygen gas during photosynthesis

• They absorb water and expand

What gas is produced by the leaf discs during photosynthesis?

• Hydrogen

• Oxygen

• Nitrogen

• Carbon dioxide