7th Grade Science Questionnaire

Plants are considered ___________ organisms because they make their own food.

Animals, including humans, are ___________ because they consume other organisms for energy.

Van Helmont's experiment helped us understand that plants need ____________ to grow.

____________ is the process by which plants convert sunlight into energy.

During photosynthesis, plants take in ____________ and release oxygen.

What type of organism can produce its own food?

• Heterotrophic

• Autotrophic

• Parasitic

• Carnivorous

Which scientist conducted important experiments on plant nutrition?

• Isaac Newton

• Albert Einstein

• Jan Baptista van Helmont

• Charles Darwin

In photosynthesis, what is the main source of energy for plants?

• Water

• Soil

• Sunlight

• Oxygen

What do plants release as a byproduct of photosynthesis?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Hydrogen

Which of the following is NOT needed for photosynthesis?

• Sunlight

• Water

• Carbon dioxide

• Nitrogen