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Name ______________________________________Date ___________Kramarczyk/WoodScience 7Photosynthesis Online LabDirections:In the MS Edge or MS Explorer, go to on Go to Illuminating Photosynthesis, then click to enable flashThe picture below shows a structural formula for the sugar called glucose. How many Carbons (C), Hydrogens (H), and Oxygens (O) do you see? Count carefully.C - H- O – Based on these numbers, write the chemical formula for glucose _________ (See hint!)(Hint: Water has 2 Hydrogen (H) atoms and 1 Oxygen (O) atom, and that is why water’s formula is H2O – notice the 2 is a subscript, and the H and O are capitals) **Be careful writing formulas – size and placement of letters and numbers matters!**Read the introductory poem, Illuminating Photosynthesis Define Illuminating – _______________________________ (Look it up if needed!)Click on “THE CYCLE” at the top of the box, follow all steps and answer all questions.Illuminating Photosynthesis – THE CYCLE1. Click on each item, and explain what happens (watch carefully, especially the plant!)The watering can ________________________________________The shade over the window ________________________________The child _______________________________________________2. Use the key on the graphic to answer the followinga. What gas does the child provide for the plant to use? _____________________b. What gas does the plant provide for the child to use? _____________________Will the plant continue to produce this gas if the shade over the window is closed? (try it and see!) ________________3. According to this animation, what three main things does a plant need for photosynthesis to occur? (These are the raw materials for photosynthesis.)1 ___________________2 ________________ 3 _________________4. Click on “ATOMIC SHUFFLE” at the top of the box and read the poem under the tree then click “NEXT” to the right of the poem. Read the poem under the new picture.What is the formula and name of the molecule shown in the leaf? ________________________5. Draw one of the molecules below, as it is shown in the leaf.6. According to the reading, these molecules “do not come from the tap”. What two places do the water molecules come from?_________________________________ and ______________________________________7. Click on “NEXT” and watch carefully. You may click on “REPLAY” to watch this again.Read the poem. What happens to the water molecules? _______________________Where does the cell get the energy to do this? ___________________________The stripped molecules form pairs. Where do the pairs go next? ________________8. Click “NEXT, watch carefully, and read the poem.What gas enters the leaf next? ___________________This gas enters through “holes” in the leaf. What are these holes called? __________9. Click “NEXT”, watch carefully, and read the poem.What molecule is now formed again? ________________10. Click “NEXT”, watch carefully, and read the poem.Another molecule is formed, “and boy is it sweet”. How many Hs, Cs, and Os are there?C ______ H ________ O ________a. What is the name and formula for this molecule? ________________ __________________11. Click “NEXT”, watch carefully, and read the poem.a. Write the chemical equation for the process of photosynthesis______________________________________________________________________Read the “Note about this equation” 12. Click on “THREE PUZZLERS” at the top of the box. Answer the following questions in your own words.a. Read the first question then click on your answer (yes or no). Can a tree produce enough oxygen to keep one person alive? Explain.____________________________________________________________________________________________________________________________________________________________b. Click on Puzzler “2”. Read the question, and then click yes or no. Can a plant stay alive without light? Explain.____________________________________________________________________________________________________________________________________________________________c. Click on Puzzler “3”. Read the question, and then click yes or no.Can a plant grow without oxygen? Explain.____________________________________________________________________________________________________________________________________________________________Conclusion Questions – Use your answers in this packet to answer the following questions. Refer back to the interactive if needed. Click “Close” when you are done with the interactive.1. Write the chemical equation for photosynthesis._____________________________________________________________________2. Write the equation for photosynthesis in words. (See hint below!)_____________________________________________________________________(Hint 2H2 + O2 2 H2O in words is Hydrogen plus Oxygen makes Water)3. What are the raw materials for photosynthesis? (Raw materials are what you start with.)____________________________________________________________________4. What are the products of photosynthesis? (Products are what comes out of photosynthesis.)____________________________________________________________________ ................
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