Science Quiz For Grade 3 Plants
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Below is a "Science quiz for grade 3 plants" made of ultimate questions about plants! Plants and animals form the living things on planet earth, and there are a lot of benefits that animals and humans derive from plants. By taking this quiz, you stand a chance at refreshing your memory on the different parts of a plant and how humans use plans. Check it out and see what more you might learn!
Questions and Answers
- 1.
What are three (3) parts of a plant?
- A.
Stem
- B.
Flower
- C.
Rose
- D.
Leaf
Correct Answer(s)
A. Stem
B. Flower
D. LeafExplanation
The question asks for three parts of a plant, and the answer includes stem, flower, and leaf. These three components are indeed parts of a plant. The stem provides support and transportation of nutrients and water, the flower is the reproductive structure of the plant, and the leaf is responsible for photosynthesis and gas exchange. The inclusion of "Rose" in the answer is incorrect, as it is a specific type of flower and not a general part of all plants.Rate this question:
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- 2.
Photosynthesis is how plants make their own ____.
- A.
Water
- B.
Food
- C.
Oxygen
- D.
All of these
Correct Answer
B. FoodExplanation
Plants use photosynthesis to convert sunlight, carbon dioxide, and water into glucose (a type of sugar) and oxygen. This glucose serves as food for the plant, providing energy for growth and development. Therefore, the correct answer is "Food."Rate this question:
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- 3.
What three (3) plants do humans use for food?
- A.
Corn
- B.
Grass
- C.
Peanuts
- D.
Sunflowers
Correct Answer(s)
A. Corn
C. Peanuts
D. SunflowersExplanation
Corn, peanuts, and sunflowers are three plants that humans commonly use for food. Corn is a staple crop that is used in various forms, such as cornmeal, corn oil, and corn syrup. Peanuts are a legume that is consumed in many ways, including as peanut butter and oil. Sunflowers are cultivated for their seeds, which can be eaten as a snack or used in cooking and baking. These plants provide essential nutrients and are widely consumed in different cultures around the world.Rate this question:
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- 4.
List three (3) ways plants help the environment and humans?
- A.
Plant roots hold the soil together to prevent erosion
- B.
Plants provide oxygen for humans to breathe
- C.
Plants smell nice
- D.
Plants provide food
- E.
Plants help control air pollution
Correct Answer(s)
A. Plant roots hold the soil together to prevent erosion
B. Plants provide oxygen for humans to breathe
E. Plants help control air pollutionExplanation
Plants play a crucial role in protecting the environment and benefiting humans in various ways. Firstly, plant roots hold the soil together, preventing erosion and maintaining the stability of the land. This helps to prevent soil degradation and the loss of fertile soil. Secondly, plants are responsible for producing oxygen through the process of photosynthesis, which is essential for humans and other living organisms to breathe. Lastly, while not mentioned in the question, plants also provide food for humans, contributing to our sustenance and nutrition.Rate this question:
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- 5.
Plants use energy from the ______________ to make food.
- A.
Moon
- B.
Electricity
- C.
Sun
- D.
None of these
Correct Answer
C. SunExplanation
Plants use energy from the Sun to make food through a process called photosynthesis. During photosynthesis, plants capture sunlight using a pigment called chlorophyll, which allows them to convert the energy from sunlight into chemical energy. This chemical energy is then used to convert carbon dioxide and water into glucose, a form of sugar that plants use as food. Therefore, the correct answer is Sun.Rate this question:
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- 6.
Plants give off ____, which animals and people breathe in.
- A.
Carbon dioxide
- B.
Nitrogen
- C.
Helium
- D.
Oxygen
Correct Answer
D. OxygenExplanation
Plants undergo a process called photosynthesis, where they use sunlight, water, and carbon dioxide to produce oxygen and glucose. Oxygen is released as a byproduct of this process and is essential for the survival of animals and humans as it is required for cellular respiration. Therefore, plants give off oxygen, which animals and people breathe in.Rate this question:
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- 7.
What three (3) things do animals need from plants?
- A.
Food from plants
- B.
Oxygen from plants
- C.
Thorns
- D.
Shelter and warmth
Correct Answer(s)
A. Food from plants
B. Oxygen from plants
D. Shelter and warmthExplanation
Animals need food from plants because plants provide essential nutrients and energy for their survival. They also need oxygen from plants as plants release oxygen through the process of photosynthesis, which animals require for respiration. Lastly, animals need shelter and warmth from plants as they provide habitats and protection from harsh environmental conditions. Thorns, on the other hand, are not necessary for animals' needs and do not provide any essential benefits.Rate this question:
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- 8.
The _____ of a plant absorbs and stores nutrients and support or anchor the plant.
- A.
Root
- B.
Leaves
- C.
Branches
- D.
None of these
Correct Answer
A. RootExplanation
The root of a plant absorbs water and nutrients from the soil and stores them for the plant's growth and development. Additionally, the root provides support and anchors the plant in the ground, preventing it from being easily uprooted or toppled over. Therefore, the root is responsible for both nutrient absorption and support in plants.Rate this question:
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- 9.
The ____ of plants take in carbon dioxide from the air that animals give off.
- A.
Branch
- B.
Leaf
- C.
Root
- D.
Fruit
Correct Answer
B. LeafExplanation
Leaves of plants have small openings called stomata that allow them to take in carbon dioxide from the air. This process is known as photosynthesis, where plants convert carbon dioxide into oxygen and glucose using sunlight. Animals, including humans, release carbon dioxide as a waste product during respiration. Therefore, leaves play a crucial role in the exchange of gases between plants and animals.Rate this question:
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- 10.
The flower is the part of the plant that grows two (2) things:
- A.
Nectar
- B.
Fruit
- C.
Seed
Correct Answer(s)
B. Fruit
C. SeedExplanation
Flowers are the reproductive structures of plants. They produce nectar to attract pollinators like bees and butterflies, which helps in the process of pollination. After successful pollination, the flower develops into a fruit, which contains seeds. The fruit serves as a protective covering for the seeds and aids in dispersal. Therefore, it can be concluded that flowers grow fruits and seeds as part of their reproductive cycle.Rate this question:
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Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Feb 08, 2024Quiz Edited by
ProProfs Editorial Team
Expert Reviewed by
Lindsey Block -
Oct 22, 2011Quiz Created by
David Schenk
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