Plant Power Challenge: Mixed Practice STEM Worksheet

Grade 9 Game-Based Review of Plant Structures, Functions, and Growth

Grade 9 STEM Plants Mixed Practice Very Easy 40 Questions 21 Views

Classroom Worksheet

Plant Power Challenge: Mixed Practice STEM Worksheet

Grade 9 Game-Based Review of Plant Structures, Functions, and Growth

Name____________________________

Date________________

Score______ / 40

Grade: Grade 9

Subject: STEM

Topic: Plants

Time: 35 minutes

Difficulty: Very Easy

Questions: 40

Instructions:
Welcome, Plant Explorer! Complete each challenge in order. Read carefully, think like a scientist, and show your answers neatly. Some questions are quick checks, while others ask you to apply what you know in real-life plant situations. Use the answer space to work step by step when needed.

Skills Practiced:

Identifying plant structures and their functions
Applying plant science vocabulary
Understanding photosynthesis, transport, and growth
Interpreting real-world plant scenarios
Using critical thinking to solve science problems

1Short Answer

Level 1: What part of a plant usually absorbs water from the soil?

2Multiple Choice

Level 1: Circle the plant part that mainly makes food for the plant: leaf, root, seed.

3True/False

Level 1: True or False: All plants need sunlight to grow well.

4Fill in the Blank

Level 1: Fill in the blank: The green pigment that helps plants capture light is called ________.

5Short Answer

Level 1: Which plant structure holds the plant upright?

6Matching

Level 1: Match the plant part to its job: stem, leaf, root. Job: takes in water.

7Short Answer

Level 1: A bean seed starts to sprout. What is this process called?

8Multiple Choice

Level 1: Which is a plant's reproductive structure: flower or rock?

9True/False

Level 1: True or False: Plants can make their own food.

10Short Answer

Level 1: What gas do plants take in during photosynthesis?

11Short Answer

Level 2: Which part of the plant moves water from the roots to the leaves?

12Short Answer

Level 2: Which part of a plant usually transports food made in the leaves to other parts?

13Ordering

Level 2: Put these steps in order: seed, sprout, seedling, mature plant.

14Short Answer

Level 2: A plant in a shady room grows toward a window. What is it responding to?

15Short Answer

Level 2: What is the main job of roots besides absorbing water?

16Fill in the Blank

Level 2: Fill in the blank: The process plants use to make sugar using sunlight is called ________.

17Multiple Choice

Level 2: Which plant structure is most likely to reduce water loss in dry habitats: broad thin leaves or small waxy leaves?

18True/False

Level 2: True or False: The stem always stays underground.

19Short Answer

Level 2: A student forgets to water a potted plant. Which plant part is most affected first?

20Short Answer

Level 2: What is one function of a flower?

21Multiple Choice

Level 3: A plant has yellow leaves and is growing slowly. Which problem is most likely affecting it: not enough light or too much oxygen?

22Short Answer

Level 3: Why do plant leaves have stomata?

23Short Answer

Level 3: What happens if a plant cannot move water from roots to leaves?

24Multiple Choice

Level 3: Which condition would most help seed germination: moist soil or dry soil?

25Short Answer

Level 3: A farmer wants to reduce soil erosion on a slope. Which plant feature helps most?

26Fill in the Blank

Level 3: Fill in the blank: The movement of a plant toward light is called ________.

27True/False

Level 3: True or False: Cactus plants are adapted to store water.

28Short Answer

Level 3: A seedling has one main root with smaller side roots. What is this root system called?

29Short Answer

Level 3: Which part of the plant is usually most responsible for absorbing sunlight?

30Short Answer

Level 3: Why are many leaves thin and flat?

31Short Answer

Level 4: A plant in a classroom terrarium gets very little airflow. What gas might build up inside the leaves if stomata do not exchange gases well?

32Short Answer

Level 4: A plant's leaves are covered with a waxy coating. What is the main advantage?

33Multiple Choice

Level 4: Which tissue is like the plant's transport system for water?

34Short Answer

Level 4: In a plant experiment, one group receives light, water, and soil. Another group receives only water and soil. Which group is expected to grow better?

35Short Answer

Level 4: What is one reason flowers are often colorful?

36Short Answer

Level 4: A student sees pollen moving from one flower to another. What process is this part of?

37Fill in the Blank

Level 4: Fill in the blank: The sugar made in photosynthesis is called ________.

38Short Answer

Level 4: Why is water important to a plant besides helping it stay upright?

39Short Answer

Level 4: A gardener trims a plant and notices new side shoots growing. Which part of the plant usually produces these new growing points?

40Short Answer

Boss Level: A plant in a sunny window has healthy leaves, strong stems, and a deep root system. Name two reasons this plant is likely thriving.

Answer Key

Teacher Notes:
Use this worksheet as a warm-up, review, or station activity. Students practice core plant concepts through game-based tasks that gradually increase in difficulty. Suggested use: individual work, partner challenge, or quiz-style review. Differentiation: support struggling learners with word banks, diagrams, or oral reading; extend advanced learners by asking them to justify answers with evidence from plant biology. Extension activity: have students label a local plant, compare two plant adaptations, or design a simple plant-growth investigation.

#	Answer	Explanation
1	Roots	Roots absorb water and minerals from the soil.
2	Leaf	Leaves are the main site of photosynthesis, where food is made.
3	True	Most plants need sunlight because they use it to make food.
4	chlorophyll	Chlorophyll absorbs light energy for photosynthesis.
5	Stem	The stem supports the plant and helps it stand upright.
6	root	Roots take in water from the soil.
7	Germination	Germination is when a seed begins to grow into a new plant.
8	Flower	Flowers help plants reproduce by making seeds.
9	True	Plants make food by photosynthesis.
10	Carbon dioxide	Plants use carbon dioxide, water, and light to make glucose and oxygen.
11	Xylem	Xylem is the tissue that carries water upward through the plant.
12	Phloem	Phloem carries sugars and other food materials.
13	seed, sprout, seedling, mature plant	This shows the usual stages of plant growth.
14	Light	Plants respond to light by growing toward it, a form of phototropism.
15	Anchoring the plant	Roots hold the plant firmly in the soil.
16	photosynthesis	Photosynthesis is how plants make their own food.
17	Small waxy leaves	Small, waxy leaves help reduce water loss.
18	False	In most plants, the stem grows above the ground.
19	Roots	Roots need water from the soil, so they are affected first when water is missing.
20	To help the plant reproduce	Flowers often produce seeds after pollination and fertilization.
21	Not enough light	Plants need light for photosynthesis; too little light can cause poor growth and pale leaves.
22	To allow gas exchange	Stomata let carbon dioxide in and oxygen out.
23	It will wilt or die	Water is needed to keep cells firm and to support photosynthesis.
24	Moist soil	Seeds usually need water to begin germination.
25	Roots	Roots hold soil in place and help prevent erosion.
26	phototropism	Phototropism is growth in response to light.
27	True	Cacti have adaptations that help them survive in dry environments.
28	Taproot system	A taproot system has one large main root with branching side roots.
29	Leaves	Leaves are adapted to capture sunlight for photosynthesis.
30	To absorb more sunlight	A thin, flat shape gives a large surface area for light capture.
31	Oxygen	Photosynthesis produces oxygen, and gas exchange helps release it.
32	It reduces water loss	A waxy cuticle helps keep water from evaporating too quickly.
33	Xylem	Xylem carries water and minerals through the plant.
34	The group with light, water, and soil	Plants need light for photosynthesis, so the full set of conditions supports better growth.
35	To attract pollinators	Bright colors can help attract insects or other pollinators.
36	Pollination	Pollination is the transfer of pollen between flowers.
37	glucose	Glucose is the food molecule plants make in photosynthesis.
38	It is needed for photosynthesis and nutrient transport	Water helps make food and move dissolved minerals through the plant.
39	The stem or buds	Buds on stems can grow into new leaves, branches, or flowers.
40	It gets enough sunlight and water; its roots and stem support healthy growth	Healthy growth usually depends on enough light, water, transport, and support structures.