Unit 25: Life Cycles and Basic Biology

Day 8 of 30

Plant life cycle: germination and growth

3-5Science

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Learning Objective

Students will be able to explore plant life cycle and germination and growth.

Today's Lesson

In this lesson, we'll explore plant life cycle: germination and growth. Scientific inquiry allows us to investigate and explain natural phenomena.

A life cycle is the series of changes a living thing goes through from birth to death and reproduction. Every organism has a life cycle, but they vary by species. For example, a butterfly: egg → caterpillar → chrysalis → adult butterfly. A frog: egg → tadpole → froglet → adult frog. Plants have life cycles too: seed → seedling → mature plant → flower/seeds. Understanding life cycles helps us see patterns in nature and how organisms reproduce and survive!

As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.

Take notes on key points and make connections to what you've already learned in previous lessons.

Key Terms
Investigate

To examine systematically through observation and experiment

Evidence

Observable facts that support or refute a claim

Activities
Instructions
1. Read the background information on plant life cycle: germination and growth. 2. Form a hypothesis before beginning. 3. Conduct the investigation following procedures. 4. Record observations and analyze results.
Materials Needed
  • Lab notebook
  • Investigation materials
  • Safety equipment if needed
Practice Problems
1

Name three things all living things need to survive.

Hint: Think about what you need every day.
2

Is a rock living or nonliving? Explain your answer.

Hint: Does it grow, breathe, or need food?
3

How is a plant different from an animal?

Hint: Think about how they get food.

Teaching Tip

For this age group: Balance direct instruction with collaborative activities. Allow students to explain their thinking and make connections to prior knowledge when exploring plant life cycle: germination and growth.

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