Grade 3 Science: 10 Free Practice Questions

Answer: Water is recycled through the water cycle, not created or destroyed
The water cycle is a continuous process in which the same water moves between the atmosphere, land, and oceans through evaporation, condensation, precipitation, and collection. Water is neither created nor destroyed in this cycle.

Answer: It reduces water resistance, helping the fish swim efficiently against strong currents
A streamlined body cuts through water more easily, which helps the fish swim against a fast current.

Answer: hunting prey in the dark without being detected
This physical feature primarily helps the animal or plant with hunting prey in the dark without being detected.

Answer: In the food chain sun → grass → grasshopper → frog → snake, the grass is the producer.
The accurate statement is: "In the food chain sun → grass → grasshopper → frog → snake, the grass is the producer." The remaining statements each contain an inaccuracy.

Answer: the paper clip must contain iron or steel
Magnets attract iron and steel.

Answer: Precipitation
This description matches precipitation, in which water falls from clouds back to Earth as rain, snow, sleet, or hail.

Answer: camouflage and insulation in a snowy, cold habitat
This physical feature primarily helps the animal or plant with camouflage and insulation in a snowy, cold habitat.

Answer: A glass cup is not attracted to a magnet.
The accurate statement is: "A glass cup is not attracted to a magnet." The remaining statements each contain an inaccuracy.

Answer: rain gauge
A rain gauge collects rainfall.

Answer: A barometer is used to measure air pressure.
The true statement is supported by established science content: "A barometer is used to measure air pressure." The other statements contain inaccuracies.