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STC Plant Growth and Development Lesson 13: Making a Brassica Model Option B Kennewick School District

STC Plant Growth and Development Lesson 13: Making a Brassica Model Option B Kennewick School District. For petals: 4 yellow styrofoam meat trays OR 1 plastic milk jug painted yellow OR Cardboard painted yellow.

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STC Plant Growth and Development Lesson 13: Making a Brassica Model Option B Kennewick School District

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  1. STC Plant Growth and DevelopmentLesson 13: Making a Brassica ModelOption BKennewick School District

  2. For petals: 4 yellow styrofoam meat trays OR 1 plastic milk jug painted yellow OR Cardboard painted yellow STC Plant Growth and Development Lesson 13B: Making a Brassica Model Materials list—Option B For filaments to support the anthers: • 6 pipe cleaners OR • 6 soda straws OR • 6 popsicle sticks OR • 6 coffee stirrers For anthers: • 6 styrofoam packing “peanuts” painted yellow OR • 6 yellow jelly beans Materials list continued on next slide…

  3. For leaves and sepals: 2 green plastic 2-liter soda bottles OR 1 plastic milk jug painted green OR Cardboard painted green STC Plant Growth and Development Lesson 13B: Making a Brassica Model Materials list (cont.)—Option B For fastening parts to the stem: • Modeling clay OR • Styrofoam balls with a center hole For the pistil: • 1 cardboard tube For the stem: • 1 dowel or sturdy twig

  4. STC Plant Growth and Development Lesson 13B: Making a Brassica Model Directions • 1. Draw and cut out the following parts and paint them the appropriate colors: 4 petals 4 sepals 3 to 5 true leaves 2 seed leaves • 2. Paint the six anthers yellow. Poke four long and two short filaments into the anthers to support them. Use pipe cleaners, soda straws, popsicle sticks, or coffee stirrers for the filaments.

  5. STC Plant Growth and Development Lesson 13B: Making a Brassica Model Directions • 3. Fasten all the parts to the stem. Use lumps of modeling clay or styrofoam balls with a center hole cut to fit the dowel. Use this as the base for attaching parts to the stem.

  6. STC Plant Growth and Development Lesson 13B: Making a Brassica Model Directions • 4. Now the model is complete. It can be either hand held or stood up in a coffee can of sand for support. Figure 13-5 Fully assembled model plant

  7. STC Plant Growth and Development Lesson 13B: Making a Brassica Model Clean up and put all supplies where they belong.

  8. STC Plant Growth and Development Lesson 13B: Making a Brassica Model Critique another group’s model for accuracy. Think about: • Does it have the correct number of petals and anthers? • Is only one pistil shown? • Are the parts in the right places? • Has the model been done neatly? • Is it attractive? • How much effort does it show?

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