Grade 1 Science: 10 Free Practice Questions

Answer: The sound stops too
Sound stops when the shaking, or vibration, stops. Sound is made by shaking, or vibration. When the rubber band shakes, it makes sound. Once the rubber band stops shaking, there is no more vibration, so the sound stops. Sound does not turn into light or last forever. Students may think the sound keeps going, not connecting that sound needs vibration to continue.

Answer: Ears
People use their ears to hear and sense sound. Sound travels through the air. When it reaches your ears, the ears help you hear the sound. Eyes are for seeing, the nose is for smelling, and hands are for touching. Students may choose eyes because we often look at what makes a sound, but eyes are used for seeing, not hearing.

Answer: a rock
A rock is hard.

Answer: The Sun
The Sun gives Earth light and warmth in the daytime. The Sun is a star we see during the day. It shines light and gives warmth to Earth. So the Sun is the correct answer. Students may pick the Moon, but the Moon is mostly seen at night and does not give warmth like the Sun.

Answer: The tree blocks the Sun's light
A shadow forms because the tree blocks the Sun's light. Light from the Sun travels in a straight path. When the tree gets in the way, it blocks the light from reaching the ground. The dark area with no light is the shadow. Students may think the tree makes its own light, but a shadow forms when an object blocks light, leaving a dark spot behind it.

Answer: Change the boat and test it again
The student should change the boat and test it again. When a design fails, engineers make changes and test again. Testing shows if the new idea works. Trying again is part of good design. Students may want to give up, but engineers keep improving a design after it fails.

Answer: They help it swim and push through water
Webbed feet help a duck push through water and swim. The skin between a duck's toes acts like a paddle. When the duck kicks, the wide webbed feet push more water, helping it swim well. Feet are not used for seeing, hearing, or smelling. Students may connect feet to other senses, but webbed feet are a body structure built to help with swimming.

Answer: iron
Magnets attract iron.

Answer: Smell, using your nose
You use your sense of smell, using your nose, to smell a flower. Each sense uses a body part. To smell something, you use your nose. Ears are for hearing, eyes are for seeing, and feet are for standing and walking. Students may pick sight because we look at flowers, but seeing a flower does not tell you how it smells; only your nose can do that.

Answer: Ears
Ears are used to hear sounds. Sounds travel to your ears, which let you hear things like a ringing bell. The nose smells, hands touch, and feet help you walk. Some students confuse senses and choose the nose, which is used for smelling, not hearing.