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What are three things all plants need to survive?
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Photosynthesis Warm Up
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How do plants get energy and mass?
• Sunlight• Water• Carbon Dioxider
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Where plants get their mass?
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Where do plants get their mass?
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Do gases have mass?
• Does the air weigh anything?
• Does the oxygen we breathe in weigh anything?
• Does the carbon dioxide in the air weight anything?
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The majority of the mass in a plant comes from…..
• CARBON DIOXIDE!!!
• But how do we know?
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Design an Experiment
• With your elbow partner, you will have 30 minutes to design an experiment (or more than 1) to show that the mass in a tree comes from carbon dioxide.
• Use the outline provided and summarize your experiments into an essay on the poster provided to present to your classmates.
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Scientific Method Review
• What items do we need to identify while designing an experiment?
• How can we make our results more reliable?
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Design an Experiment
• With your elbow partner, you will have 30 minutes to design an experiment (or more than 1) to show that the mass in a tree comes from carbon dioxide.
• Use the outline provided and summarize your experiments on the poster provided to present to your classmates.
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Exit Ticket
• How can scientists know that gases like carbon dioxide have mass?