Trees and Combustion

4.07 Physics 2

Poll

Where do trees get their mass?

• Earth

• Nutrients in ground

• Air

• Water in ground

Multiple Choice

What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.

• oxygen, glucose, sunlight

• sunlight, oxygen, water

• water, oxygen, carbon dioxide

• carbon dioxide, sunlight, water

Multiple Choice

What are the products of photosynthesis?

• water and carbon dioxide
• oxygen and glucose
• oxygen and carbon dioxide
• oxygen and water

Multiple Choice

Which product is "waste" and mostly released by the producer (plant)?

• oxygen

• carbon dioxide

• sugar

• glucose

Multiple Choice

What pigment captures/absorbs sunlight?

• stomata

• chlorophyll

• chloroplast

• phloem

Multiple Choice

Why do we burn a fuel?

• To have fun

• To release energy

• To lose energy

• To produce carbon dioxide

Multiple Choice

What is essential for a combustion reaction to begin?

• Carbon dioxide
• Fuel 
• Fuel, oxygen and heat
• Water and oxygen

Multiple Choice

What does incomplete combustion produce that complete combustion doesn't?

• Carbon Monoxide

• Water

• Heat

• Carbon Dioxide

Multiple Choice

What are the products of combustion?

• Hydrogen + oxygen

• Carbon dioxide + water

• Carbon dioxide + hydrogen

• Carbon + water