Bell work Explain the difference between a product and a reactant. Give at least 1 real life example of each.

Science Fact of the Day: You can figure out which way is south if you are near a tree stump. The growth rings are wider on the south side.

CO: TSW explain the relationship between photosynthesis and cellular respiration LO: TSW explain the relationship between photosynthesis and cellular respiration in aqueous plants

Elodea Lab: Copy the following chart Start 5 min. 10 min. 15 min. 20 min. Water Baking soda

Elodea: Hypothesis

Elodea Lab Procedure A person will make a cutting of the elodea (2x) Put each cutting into a test tube Fill and label one test tube with water Fill and label one test tube with the baking soda solution Put foil and a rubber band around each test tube Set test tubes in test tube rack

While we’re waiting Title a page in your Assignment section: What’s in a Leaf

List 3 things entering the leaf. List 3 substances leaving the leaf. Which substance is both entering and leaving? How is this substance changed?

5) What are the reactants for photosynthesis 5) What are the reactants for photosynthesis? 6) Where do the reactants enter the leaf? 7) What are the products of photosynthesis? 8) Where do they leave the leaf? 9) Categorize all components involved as either matter or energy.

10) Plants that live on the floor of forests tend to have much larger leaves than plants that live in hot, sunny conditions. Explain why this might be.

11) Cacti are plants that live in extremely dry environments 11) Cacti are plants that live in extremely dry environments. Unlike most other plants cacti do not have regular leaves, but instead have spines. They do have green stems. How would the lack of regular leaves help cacti survive in their environment? In what part of the cacti would photosynthesis occur?

Elodea Analysis Questions What gas formed on the elodea? What process produced this gas? Baking soda in water will partially decompose to form CO2 and water. Explain how this influenced the amount of bubbles that you saw. Explain the relationship between the reactants and products in photosynthesis and cellular respiration.