Experiment 2 CO2 CO2 CO2 NoCO2 NoCO2 CO2 CO2 + water + water + water Conclusion: Plants need carbon dioxide to grow.

Experiment 3 Observations: Experiment and Results: Conclusion: Plants produce oxygen that we need to survive.

Experiment 4 x x Conclusion: Plants need sunlight to produce oxygen.

Photosynthesis Reaction Carbon Dioxide (gas) + water (liquid) + sunlight (energy)  oxygen (gas) + sugar (glucose) (energy)

Photosynthesis History Wrap-up (in notes section of binder) What source of carbon do plants use to build their biomass (Hint: it’s a gas)? What gas do plants produce that we REQUIRE to live? What source of energy do plants use when carrying out photosynthesis? Which product of photosynthesis do you think is used to make energy?