Scientific Eye - Photosynthesis

What do all green plants need to make their own food?

• Soil

• Sunlight

• Darkness

• Cold temperature

What is the process called where plants make their own food?

• Photosynthesis

• Digestion

• Transpiration

• Respiration

What special pigment do leaves contain that traps sunlight?

• Hemoglobin

• Keratin

• Melanin

• Chlorophyll

What are the raw materials for photosynthesis?

• Water and carbon dioxide

• Nitrogen and sunlight

• Soil and water

• Oxygen and carbon

What does photosynthesis produce?

• Soil and minerals

• Carbon dioxide and water

• Heat and light

• Oxygen and sugar

What can increase the rate of photosynthesis?

• Decreasing sunlight

• Increasing carbon dioxide

• Lowering temperature

• Reducing water

What is not a direct product of photosynthesis?

• Water

• Soil

• Sugar

• Oxygen

What do plants need nutrients like nitrogen and minerals for?

• To generate water

• To create sunlight

• To produce materials like cellulose from sugar

• To support the plant physically

How can carbon dioxide from the air make plants get heavier?

• By acting as a nutrient

• By providing support

• By cooling the plant down

• By being a raw material for photosynthesis

What happens to the oxygen level when plants can't photosynthesize?

• It fluctuates wildly

• It decreases

• It stays the same

• It increases