"Our Flowering World" PRE-TEST. Directions: Write a definition for each of the terms listed below:

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Transcription:

1 PRE-TEST Directions: Write a definition for each of the terms listed below: 1. fertilization 2. embryo 3. pollen 4. anther 5. pistil 6. stamen 7. ovule 8. nectar 9. ovary 10. style Directions: Use the terms listed below to label the drawing on the right. anther pistil ovary stamen Short Answer Question: Why are insects and birds so important to the plant world?

2 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. True or False section: 1. True or False Pollen grains transport genetic material from flower to flower. 2. True or False Cotyledons contain a bean's food supply. 3. True or False Pollen is produced at the tips of a flower's pistils. 4. True or False For a seed to be produced, pollen grains must travel from an ovary to an anther. Fill-in-the-blank section: 5. Ovules develop within a plant's. 6. Anthers produce special cellls called. 7. A plant's ovules produce its. 8. The partially developed plant within a seed is called an. 9. The ovaries of flowering plants develop into. 10. The structure considered the female part of a flower is called its.

3 CROSSWORD DIRECTIONS: Use the clues at the bottom of the page to help you fill in the blanks of the crossword. Across 1. part within seed containing food for the embryo 2. produce and store pollen 3. male part of plant 4. partially developed plant (baby plant) 5. the joining of a sperm and egg 6. female part of plant Down 1. produce and contain plant's eggs 2. organ where ovules are produced 3. a fertilized ovule 4. sugar solution that attracts insects 5. protective structure for seed 6. grains that produce sperm cells

4 FLOWER DISSECTION Purpose: To dissect a flower and locate the different flower parts. Materials: 1. a flower 4. hand lens or magnifying glass 2. scissors 5. newspaper 3. cardboard 6. tape Procedures: 1. Put the flower on the newspaper and sketch what you see. 2. Try to identify the parts of the flower (pistil, stamen, anther, pollen). 3. Carefully cut each part from the flower for closer inspection with the hand lens. 4. Cut open the anther to look at the pollen grains. 5. Cut open the pistil to find the ovary. 6. Tape the different flower parts in the boxes on this sheet. Observations: My picture of my flower Pistil Anther Stamen Pollen

5 FLOWER STRUCTURE DIRECTIONS: Identify the parts of a typical flower. Write the number of each part shown in this diagram next to the word it represents. pollen grain sperm stamen pollen tube egg stigma anther pistil ovule filament style ovary

6 STAGES PURPOSE: To show the stages of growth as a bean plant sprouts. MATERIALS: 1. bean seeds 2. water 3. paper towels PROCEDURES: 1. Soak the beans in a cup of warm 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. First Day Second Day Third Day Fourth Day Fifth Day

7 SEED COLLECTION DIRECTIONS: Collect seeds and make a display. * Some seeds are large and some are very small. * Some seeds grow inside fruits. * Some can be found on the ground. * Some float in the air. * Some float in the water. * Some stick to our clothes or hair. * Some seeds we can eat. * Some seeds birds or animals eat. * Some seeds grow into flowers. * Some seeds grow into trees. Find examples of different seeds and tape or glue them to a piece of cardboard. Tell what you can underneath each seed sample.

8 POST-TEST DIRECTIONS: Answer the following questions in the space provided. 1. Why are insects like bees and beetles so important to the plant world? 2. Draw an arrow from the plant parts listed on the right to their proper place on the diagram below. a. ovary b. pistil c. stamen d. anther 3. Match the words on the left with their definitions on the right. Put the correct letter on the blank next to the word. fertilization nectar embryo pollen ovule anther pistil stamen a. the female part of a flower b. a small plant just starting to grow c. pollen develops and is stored here d. the plant world's female sex cell (egg) e. when sperm and egg cells unite f. a sugary substance to attract insects g. the plant world's male sex cell (sperm) h. the male part of a flower