STC Plant Growth and Development

Lesson 2: What Is Inside a Seed?

Kennewick School District

Materials listFor each student: 1 dry bean seed 2-3 soaked bean seeds 1 paper towel Student notebook Activity Sheet 1:

Recording Chart for Seed Observations

For every 2 students: Hand lens

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

What did you learn about the dry bean seed by using your senses?

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

What did you predict would happen to the dry bean seed after soaking overnight in water?

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Use your senses (except taste, of course) to observe the soaked seeds.

Compare the soaked seed to a dry seed.

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Record your observations of the outside of the soaked seed on Activity Sheet 1, next to yesterday’s observations of the dry seed. Be sure to use accurate describing words.

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

How is the soaked bean seed different from the dry bean seed?

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Now peel off the seed coat.

Gently pry open the two halves of the seed.

Use your hand lens to observe the parts ofthe seed.

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Take another soaked bean and observe it closely, inside and out.

Are the two beans similar?

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Inside a Bean Seed

Copyright 1991 by the National Academy of Sciences.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

cotyledon

Contains the food for the beginning underground growth of the plant.

Add this vocabulary word and its meaning to your glossary.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

embryo

A baby plant. The tiny, undeveloped plant that includes all the parts of a mature plant.

Add this vocabulary word and its meaning to your glossary.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

seed coat

The outside of the seed. It protects the delicate inside parts of the seed.

Add this vocabulary word and its meaning to your glossary.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Draw what you see on your observation sheet. Label the parts.

Your drawing doesn’t need to be a work of art, but should be a clear, complete, and accurate record of the information you have learned about the seed.

©2003 Microsoft Corporation.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Lesson 2 Activity Sheet 1

Recording Chart for Seed Observations Directions: In the spaces below, write one or two accurate words to describe the seed you are observing today.

**Draw the size of your bean in the “Size” section

Dry Bean Soaked Bean

Color

Shape

Texture

Odor

Size

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Clean up. Put all materials and supplies where they belong.

Put your activity sheet into your notebook.

Throw away your seeds and paper towels.

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?

Update your Table of Contents

STC Plant Growth and Development Lesson 2: What Is Inside a Seed?