Grade 3 Science Readiness Review
Reviewing observation, matter, plants, animals, weather, and forces
Grade 3 Science Readiness Review
Reviewing observation, matter, plants, animals, weather, and forces
Science - Grade 2-3
- 1
Mia sees a rock that is gray, rough, and heavy for its size. Which words are observations, and why are they observations?
Observations are facts you can notice or measure.
Gray, rough, and heavy for its size are observations because Mia can learn them by using her senses or simple tools. - 2
A cup of water is placed in the freezer overnight. What change will happen to the water? Name the state of matter before and after.
The liquid water will freeze and become solid ice. The state changes from a liquid to a solid. - 3
A student sorts objects into three groups: solids, liquids, and gases. Where should air go, and how do you know?
Think about what fills a balloon when you blow it up.
Air should go in the gas group because it does not have a fixed shape and it spreads out to fill the space around it. - 4
Look at a plant with roots, a stem, leaves, and flowers. Choose one plant part and explain its job.
The roots hold the plant in the ground and take in water and minerals from the soil. Other correct answers include that the stem supports the plant, leaves make food, and flowers can help make seeds. - 5
Put these plant life cycle stages in order: adult plant, seed, sprout, young plant.
Begin with the part that can be planted in soil.
The correct order is seed, sprout, young plant, and adult plant. - 6
A rabbit needs food, water, air, and shelter. Explain why shelter is important for the rabbit.
Shelter is important because it helps protect the rabbit from weather, predators, and other dangers. - 7
A fish has gills and fins. How do these body parts help the fish live in water?
Think about how a fish breathes and moves.
Gills help the fish get oxygen from the water, and fins help the fish swim and steer. - 8
Which habitat is best for a cactus: a desert, a pond, or a rainforest? Explain your choice.
A desert is best for a cactus because cactuses are adapted to dry places with little rain. - 9
The weather report says tomorrow will be 38 degrees Fahrenheit with snow. What kind of clothing would be a good choice, and why?
Use the temperature and precipitation to make your choice.
A warm coat, hat, gloves, and boots would be good choices because the temperature is cold and snow is expected. - 10
Name one form of precipitation and describe what it is.
Rain is one form of precipitation. It is liquid water that falls from clouds to the ground. Snow, sleet, and hail are also forms of precipitation. - 11
A ball is sitting still on the grass. What must happen for the ball to start moving?
Forces can change how objects move.
A force, such as a push or a pull, must act on the ball for it to start moving. - 12
Sam pushes a toy car gently, and then he pushes the same car harder. How will the harder push change the car's motion?
The harder push will make the toy car move faster or farther than the gentle push. - 13
A magnet picks up a paper clip but not a plastic button. What can you conclude about the paper clip and the button?
Magnets attract some metals, but not all materials.
The paper clip is made of a material that is attracted to magnets, such as iron or steel. The plastic button is not attracted to the magnet. - 14
A flashlight shines on a toy, and a shadow appears on the wall. What causes the shadow?
Light travels from the flashlight until something blocks it.
The toy blocks some of the light from the flashlight, so a dark shadow forms on the wall behind it. - 15
A student finds soil, pebbles, and sand near a playground. Are these living or nonliving things? Explain how you know.
Soil, pebbles, and sand are nonliving things because they do not grow, need food or water, or make more of their own kind.