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Product Highlights
Students learn how to make their own algae beads and get hands-on experience developing a model and testing a hypothesis. They begin by learning about the relationship between wavelength of light and the rate of photosynthesis. From there, student groups form hypotheses about how different-colored light filters affect photosynthesis rate. Finally, they test their hypotheses using colored filters, their algae beads, and a bicarbonate indicator solution.
Time Requirement
Teacher prep, approximately 2 class periods. Pre-lab, investigation, and assessment, 4 class periods.
Digital Resources
Includes 1-year access to digital resources that support 3-dimensional instruction for NGSS. Digital resources may include a teacher manual and student guide, pre-lab activities and setup videos, phenomenon videos, simulations, and post-lab analysis and assessments.
Performance Expectations
HS-LS1-5
HS-LS1-6
Crosscutting Concepts
Energy and Matter
Disciplinary Core Ideas
LS1.C: Organization for Matter and Energy Flow in Organisms
Science and Engineering Practices
Developing and Using Models
Learning Objectives
Prerequisite Knowledge and Skills
Students should know the processes of photosynthesis and cellular respiration. They should also be familiar with pH.
Components | Qty | Included? |
---|---|---|
Chlorella Culture ![]() |
1 | Included |
Alga-Gro® Concentrate | 1 | Included |
Sodium Alginate Powder, 2 g | 1 | Included |
Calcium Chloride, 20 g | 1 | Included |
Glass Culture Tubes with Caps, 13 x 100 mm | 48 | Included |
Color Filters, Set of 5 | 2 | Included |
Diffraction Gratings | 36 | Included |
Pipets, 3 mL | 100 | Included |
Medicine Cups, 1-1/4 oz | 10 | Included |
Coffee Filters | 100 | Included |
Bicarbonate Indicator Solution, 30-mL Vial | 5 | Included |
Teacher's Manual with Reproducible Student Guide | 1 | Included |
Carolina Science Online® Resources (1-year subscription) | 1 | Included |
Large Flask for Culturing Algae, 1,000 mL | 1 | Needed, Not Included |
Springwater, 1 L | 1 | Needed, Not Included |
Scissors | 1 | Needed, Not Included |
Fluorescent or Grow Lamp | 1 | Needed, Not Included |
Aluminum Foil | Needed, Not Included | |
Colored Pencils or Crayons | 10 | Needed, Not Included |
Distilled Water | Needed, Not Included | |
Funnels | 5 | Needed, Not Included |
Glass Beakers, 100 mL | 10 | Needed, Not Included |
Plastic Spoons | 10 | Needed, Not Included |
Hot Plate/Stirrer | 1 | Needed, Not Included |
Laboratory Scoop | 1 | Needed, Not Included |
Labeling Tape | Needed, Not Included | |
Volumetric Flasks, 100 mL (optional) | 10 | Optional, Not Included |
Boric Acid, 12.4 g (optional) | 1 | Needed, Not Included |
Sodium Borate, 9.5 g (optional) | 1 | Needed, Not Included |
Spectrophotometer (optional) | 1 | Needed, Not Included |
Aquarium Bubbler (optional) | 1 | Needed, Not Included |