1 Name____________________________

HOW PLANTS GROW Pre-Test Directions: Answer the following questions as directed by your teacher. You may use the back of this sheet to write your answers. 1. What are the three main parts of plants?

2. How do roots help a plant?

3. What is the job that stems perform?

4. How do leaves help a plant to grow?

5. What do seeds need to germinate, or start growing?

6. What are cotyledons?

7. What is the process of photosynthesis?

8. In some plants, such as carrots and beets, the roots do more than provide support. What else do they do?

9. What is chlorophyll?

10. Why is sunlight important to a growing plant?

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

2 Name____________________________

HOW PLANTS GROW Video Quiz Directions: At the end of the video production is a short quiz. You may write the answers to the quiz on this sheet. Multiple Choice: Circle the correct word to fill in the blank. 1. The food making process that plants carry on is called ____________. a. chlorophyll b. photosynthesis c. germination d. cotyledons 2. The chemical that gives green plants their color and is used with food making is called ___________. a. chlorophyll b. photosynthesis c. germination d. cotyledons 3. The food for a sprouting plant is stored in the seed's ______________. a. chlorophyll b. photosynthesis c. germination d. cotyledons Short Answer: Write a short answer for each question. 4. How do leaves help a plant?

5. What is the job of stems for a plant?

6. What do seeds need to germinate, or start growing?

7. What job do roots perform for a plant?

8. Why is sunlight important to a green plant?

9. Root hairs absorb nutrients and ________________.

10. What does a plant need to make its food?

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

3 Name____________________________

HOW PLANTS GROW Foil on the Soil PURPOSE: To illustrate the role roots play in supplying a plant with needed water. MATERIALS:

1. three impatients plants in separate pots 2. aluminum foil 3. water

PROCEDURES: 1. For three or four days, do not water the plants. 2. One plant will have its soil watered, one will have water given only to its leaves, and the third plant will have water given only to its stem. 3. Be sure to cover the soil with the aluminum foil when watering the leaves or stem of those two plants. 4. To water only the stem, hold the plant sideways in a stream of water. 5. Let the plants sit for a couple of hours but leave the foil over the soil of the two that are not to have the roots receive water. OBSERVATIONS: Compare the conditions of all three plants. Write down your observations here: Watered roots-

Watered stem-

Watered leaves-

CONCLUSIONS: How do you explain these results?

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

4 Name____________________________

HOW PLANTS GROW Needs A. Directions: Circle the things in the box that a plant needs to make its food.

spoon

sunlight

oxygen

carbon dioxide

chlorophyll

petroleum

minerals

water

cotyledons

B. Directions: Tell what each of these plant parts does for the plant. Root ____________________________________________________________________ ____________________________________________________________________ Seed ____________________________________________________________________ ____________________________________________________________________ Leaves __________________________________________________________________ ____________________________________________________________________ Stem ____________________________________________________________________ ____________________________________________________________________

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

5 Name____________________________

HOW PLANTS GROW Roots, Stems, and Leaves Plants have three main parts. Each part plays an important role in the plant's growth and development. Directions: Match the jobs listed at the bottom of this page with the plant parts numbered 1, 2, and 3 in the chart below. Some jobs can be used more than once.

1. ROOTS

2. STEMS

3. LEAVES

JOBS Store food make food hold plant in ground move water and minerals to different parts of plant support leaves take in water take in minerals release oxygen and carbon dioxide into the air

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

6 Name____________________________

HOW PLANTS GROW Stages PURPOSE:

To show the stages of growth as a bean plant sprouts.

MATERIALS:

1. beans 2. water 3. paper towels

PROCEDURES:

1. Soak the bean seeds in a cup of water overnight. 2. Place them in paper towels that have been soaked with water. 3. Keep them in the wet paper towel for five days. 4. Observe them closely each day.

OBSERVATIONS: Draw what the seeds look like each day.

Day 1

Day 3

Day 2

Day 4

Day 5

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

7 Name____________________________

HOW PLANTS GROW Seed Germination PURPOSE: To discover how water affects the germination of seeds. MATERIALS:

1. lima beans 2. potting soil 3. magnifying lens 4. three jars 5. water

PROCEDURE:

1. Fill each of the three jars with potting soil. Leave some space at the top of each jar. Number the jars 1, 2, 3. 2. Plant 4 lima beans in each jar. Place them about one-half inch down into the soill, cover with soil. Place them close to the side of the jar so you can make observations. 3. Keep the jars in a warm place. 4. In jar number 1, keep the level of water always above the surface of the soil. This jar’s soil and beans are always soaked. 5. In jar number 2, add just enough water each day so that the soil is damp. 6. Jar number 3 will receive no water.

OBSERVATIONS: Keep a record of what you see happening in each jar for the next week or two. CONCLUSIONS:

What can you tell about a seed's need for water?

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

8 Name____________________________

HOW PLANTS GROW Strength of Seed Germination PURPOSE: To demonstrate the strength of germinating (sprouting) seeds. MATERIALS:

1. enough bean seeds to fill a jar 2. a jar with a screw-on lid 3. water 4. gallon-sized plastic bag with tie or ziplock

PROCEDURES: 1. Fill the jar to the very top with seeds. Really pack them in. 2. Pour water into the jar till it overflows. 3. Put the jar lid on and tighten it into place. 4. Place the jar into the gallon-sized plastic bag. Seal the plastic bag with a tie or ziplock it. 5. Place the entire set-up in a warm spot and look at it over the next couple of days. OBSERVATIONS: What happened to the seeds in the jar? What happened to the jar? CONCLUSIONS: How can you explain any change in the appearance of the jar and seeds?

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]

9 Name____________________________

HOW PLANTS GROW Post-Test Directions: Answer the following questions in the space provided. 1. What four things do plants need to grow strong and healthy?

2. What do we mean when we say a plant “sprouts”?

3. Why is the skin, or outer coating, of a seed important?

4. The germ, or seed, is the part that grows into a plant. On what does the germ feed?

5. Why is sunlight important to a growing green plant?

6. What do we call the green in a leaf?

7. Green plants produce, or make, their own food. What do they need and where do they get it?

8. How do roots help a plant?

9. What job do stems do for a plant?

10. How are leaves important to a plant?

How Plants Grow (Debbie Greenthumb Unit of Study) ©2000 Colgren Communications Published and Distributed by AGC/United Learning All rights to print materials cleared for classroom duplication and distribution AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL 60201 1-800-323-9084 Fax 847-328-6706 www.agcunitedlearning.com e-mail: [email protected]