Grade 8 Earth Science Worksheet: Plants

Plants Mixed Practice

Grade 8 Earth Science Plants Mixed Practice Advanced 10 Questions 9 Views

Classroom Worksheet

Grade 8 Earth Science Worksheet: Plants

Plants Mixed Practice

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Grade: Grade 8

Subject: Earth Science

Topic: Plants

Time: 20 Minutes

Difficulty: Advanced

Questions: 10

Instructions:
Read each question carefully and answer in complete sentences when needed. Show your thinking for calculation and explanation questions. Questions are arranged from easier to more challenging.

Skills Practiced:

Plants
Earth Science
Critical Thinking
Problem Solving

1Question

What are the three main parts of a plant most directly involved in survival and growth?

2Question

Explain one way roots help a plant survive in its environment.

3Question

Which process do plants use to make their own food using sunlight, water, and carbon dioxide?

4Question

Why are leaves usually broad and flat?

5Question

A plant is placed near a window, and its stem bends toward the light. What is this response called, and why is it helpful?

6Question

Describe the role of xylem and phloem in a plant.

7Question

A student notices that a cactus has thick stems and spines instead of large leaves. How do these features help the cactus survive in a dry environment?

8Question

Compare pollination and fertilization in flowering plants.

9Question

A plant in poor soil shows yellow leaves and slow growth. Explain two possible reasons this plant may not be healthy.

10Question

A farmer wants to increase crop yield in an area with low rainfall. Describe two plant adaptations or farming strategies that could help, and explain why each would be effective.

Answer Key

#	Answer
1	Roots, stems, and leaves.
2	Roots absorb water and minerals from the soil and also help anchor the plant in place.
3	Photosynthesis.
4	Leaves are broad and flat to capture more sunlight and to provide a large surface area for gas exchange.
5	This response is called phototropism. It is helpful because it allows the plant to grow toward light for better photosynthesis.
6	Xylem carries water and minerals from the roots to the rest of the plant, while phloem carries sugars made in the leaves to other parts of the plant.
7	Thick stems store water, and spines reduce water loss and help protect the plant from herbivores.
8	Pollination is the transfer of pollen from the male part of a flower to the female part. Fertilization happens after pollination, when the sperm from the pollen joins with the egg inside the ovule.
9	The soil may not provide enough minerals such as nitrogen, which can cause yellow leaves. The plant may also be getting too little water or may have damaged roots, which would slow growth.
10	One strategy is to plant drought-tolerant crops with deep roots or waxy leaves, which help reduce water loss and reach water deeper in the soil. Another strategy is to use drip irrigation or mulch, which conserves water by delivering it slowly to roots or reducing evaporation from the soil.