BioChemistry > GIZMOS > 1.2 Virtual Lab_ Plants and Snails Gizmo (Latest ).pdf. Graded A+ (All)

1.2 Virtual Lab_ Plants and Snails Gizmo (Latest ).pdf. Graded A+

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Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: aerobic respiration, bromothymol blue (BTB), carbon dioxide-ox... ygen cycle, indicator, interdependence, photosynthesis Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What important gas do we take in when we breathe? 2. Why don’t we run out of the important gases that we need to stay alive? Gizmo Warm-up In the Plants and Snails Gizmo, each of the test tubes contains water and a small amount of bromothymol blue (BTB). BTB is a chemical indicator. An indicator changes color when the chemicals in the water change. 1. With the lights set to on, drag a snail into one test tube and a plant into another. Press Play ( ). After 24 hours, what is the color of each tube? 2. Select Show oxygen and CO2 values. Place the O2 /CO2 probe in each tube. The probe shows the levels of two gases, oxygen (O2 ) and carbon dioxide (CO2 ), in the tubes. We call these amounts the gas levels. Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved Name: Violet Kang Date: 2021-02-11 We take in oxygen when we breathe. The gases go through a continuous cycle. The snail tube has turned yellow and the plant tube blue after 24 hours. A. When the water turns blue, which gas is most common? Oxygen B. When the water turns yellow, which gas is most common? Carbon Dioxide C. What does it tell you when the water is green? [Show More]

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