Science in Grade 3 is an exciting adventure. At this stage, children begin exploring the world more deeply by asking questions, making observations, and learning how things work. Because of this, Grade 3 science questions with answers are a wonderful way to support learning both at school and at home. Not only do these questions reinforce key concepts, but they will also help children build confidence and curiosity.

Moreover, third-grade science covers a wide range of topics, including living things, matter, energy, Earth science, and simple experiments. Therefore, practicing with age-appropriate science questions will help students review what they have learned while keeping learning fun and stress-free.
In this blog post, you will find engaging third-grade science questions and answers organized by topic, along with helpful tips for parents and teachers on how to use them effectively.
Why Science Practice Is Important in Grade 3
At this level, students start connecting ideas and understanding cause and effect. As a result, regular science practice helps them remember key facts while also improving problem-solving skills.
Additionally, science questions encourage kids to think critically. Instead of memorizing information, students learn to observe, predict, and explain. Over time, this builds a strong foundation for upper elementary science.
Most importantly, fun science quizzes make learning enjoyable. When kids enjoy what they are learning, they are more likely to stay engaged and motivated.
Living Things: Grade 3 Science Questions
Learning about living things is a big part of the Grade 3 science curriculum. Students explore plants, animals, and how living things grow and survive.
Question 1: What do all living things need to survive?
Answer: Air, water, and food
Question 2: What part of a plant makes food?
Answer: The leaves
Question 3: What do we call animals that eat only plants?
Answer: Herbivores
Question 4: What do we call animals that eat both plants and animals?
Answer: Omnivores
Question 5: What is the life cycle of a butterfly called when it changes form?
Answer: Metamorphosis
As you can see, these elementary science questions help reinforce basic biology concepts in a simple way.
Plants and Plant Life Cycles
Understanding plant life cycles will help children see how nature works.
Question 6: What part of the plant grows underground?
Answer: The roots
Question 7: What do roots absorb from the soil?
Answer: Water and nutrients
Question 8: What do flowers help plants make?
Answer: Seeds
Question 9: What is the first stage of a plant’s life cycle?
Answer: A seed
Question 10: What helps plants grow tall and strong?
Answer: Sunlight
Animals and Their Habitats
In addition to plants, Grade 3 students study animals and where they live. This helps children understand the ecosystems and environments.
Question 11: What is a habitat?
Answer: The place where an animal lives
Question 12: Which animal lives in the ocean?
Answer: A dolphin
Question 13: Which animal lives in a desert?
Answer: A camel
Question 14: Why do animals need shelter?
Answer: To stay safe and protected
Question 15: What do we call animals that sleep during the day and are active at night?
Answer: Nocturnal animals
Matter and Its Properties
Now let’s move on to the matter!
In Grade 3, students learn about solids, liquids, and gases using simple examples.
Question 16: What are the three states of matter?
Answer: Solid, liquid, and gas
Question 17: What state of matter is ice?
Answer: Solid
Question 18: What state of matter is water?
Answer: Liquid
Question 19: What state of matter is air?
Answer: Gas
Question 20: Can matter change from one state to another?
Answer: Yes
Changes in Matter
Furthermore, students learn how matter can change due to heat or cooling.
Question 21: What happens when ice melts?
Answer: It changes from a solid to a liquid
Question 22: What happens when water freezes?
Answer: It turns into ice
Question 23: What do we call it when water turns into vapor?
Answer: Evaporation
Question 24: Does the matter disappear when it changes?
Answer: No
Question 25: What tool can measure temperature?
Answer: A thermometer
Energy and Forces
Another important Grade 3 science topic is energy and forces. These lessons explain how things move and work.
Question 26: What is energy?
Answer: The ability to do work
Question 27: What type of energy comes from the sun?
Answer: Light energy
Question 28: What force pulls objects toward the ground?
Answer: Gravity
Question 29: What happens when you push or pull an object?
Answer: It moves
Question 30: What type of energy makes sounds?
Answer: Sound energy
Earth and Space Science
At the same time, Grade 3 students explore Earth and space concepts in simple ways.
Question 31: What planet do we live on?
Answer: Earth
Question 32: What do we call the natural satellite that orbits Earth?
Answer: The moon
Question 33: What causes day and night?
Answer: Earth’s rotation
Question 34: What are rocks, soil, and water part of?
Answer: Earth’s surface
Question 35: What do we call weather conditions over time?
Answer: Climate
As a result, kids begin to understand their planet and its patterns.
Weather and Climate
Weather is another favorite topic among third graders.
Question 36: What tool measures rainfall?
Answer: A rain gauge
Question 37: What type of weather includes thunder and lightning?
Answer: A storm
Question 38: What season is usually the coldest?
Answer: Winter
Question 39: What season comes after summer?
Answer: Fall
Question 40: What tool measures wind speed?
Answer: An anemometer
Tips For Using These Grade 3 Science Questions
Now that you have a full set of Grade 3 science questions with answers, there are many ways you can use them.
For instance, as a parent, you can use them for homework help or quick review sessions, or homeschooling.
As a classroom teacher, you can use them as warm-up activities, exit tickets, or quiz games.
Download Your Free Science Trivia PDF

Click on the link below for a set of science trivia worksheets for your 3rd graders.
Grade 3 Science Questions With Answers (3 downloads )
More Fun Trivia Worksheets & Quiz Cards
Here are some more resources you may want to snag for your kiddos:
- 50+ Solar system trivia questions for kids
- 30 free space trivia questions for kids
- Quiz questions for 9-11 year olds
Grade 3 Science Questions With Answers
These Grade 3 science questions and answers are a powerful tool for reinforcing key concepts, building confidence, and making learning enjoyable. By practicing topics like living things, matter, energy, Earth science, and weather, students strengthen their understanding while having fun.
Whether you are a parent, teacher, or homeschooler, these third-grade science practice questions will provide meaningful support for your kiddos.
With consistent practice and encouragement, kids can develop a lifelong love of science, one question at a time.
Pin These Science Worksheets & Quiz Cards
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