PRINCIPLES OF LIFE SCIENCERAINIER JR /SR HIGH SCHOOL

MR. TAYLOR

Photosynthesis Lab

Storing the Sun’s energy

Energy from the sun can be stored in various ways!

Storing the Sun’s energy

Solar collectors

Storing the Sun’s energy

Wind turbines

Storing the Sun’s energy

Hydroelectric Dams

Storing the Sun’s energy

Fossil Fuels

COAL

GASOLINE/MOTOR FUELS

NATURAL GAS

Storing the Sun’s energy

Wait …. fossil fuels store the sun’s energy????

Yes!

Storing the Sun’s energy

Plants use to capture the sun’s energy!

CO2 + H2O C6H12O6 + O2 (carbon dioxide) + (water) (glucose) +

(oxygen)

photosynthesis

Photosynthesis

CO2 + H2O C6H12O6 + O2 This looks like a chemical reaction!!

Where does the sun’s energy enter into this process???

3 things are needed for this reaction to occur Chlorophyll Some enzymes Light!!

Photosynthesis

You all know that the rate of a chemical reaction can vary Brainstorm with your table partner at least 3 ways

that the rate of a chemical reaction can be increased or slowed.

Photosynthesis

Now brainstorm specific ways that you can speed up or slow down the rate of photosynthesis.

Photosynthesis Lab

Your project will be to: Use a water plant (Elodea) to explore the process of

photosynthesis. Determine the rate of photosynthesis using ambient

room light and room temperature. Determine the rate of photosynthesis after varying

one and only one variable in your reaction vessel.