1st Grade Science : Life Science

Study concepts, example questions & explanations for 1st Grade Science

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Example Questions

Example Question #1 : Life Science

Select the item that is non-living. 

Possible Answers:

Butterfly 

Cat

Car

Grass 

Correct answer:

Car

Explanation:

The world is made up of both living and non-living things. 

Living things are things that are alive. Living things eat so that they can grow and develop. Non-living things have never been alive, they are just objects. 

A butterfly, grass, and a cat are all living things. They grow and develop over time. However, a car is an object that does not grow or develop. It is an objects, which means it is non-living. 

Example Question #1 : Life Science

Select the item that is non-living. 

Possible Answers:

Plant

Swing

Worm 

Bird

Correct answer:

Swing

Explanation:

The world is made up of both living and non-living things. 

Living things are things that are alive. Living things eat so that they can grow and develop. Non-living things have never been alive, they are just objects. 

A bird, plant, and worm are all living things. They grow and develop over time. However, a swing is an object that does not grow or develop. It is an objects, which means it is non-living. 

Example Question #2 : Life Science

Select the answer choice that is living. 

Possible Answers:

Kite

String

Car

Grass

Correct answer:

Grass

Explanation:

The world is made up of both living and non-living things. 

Living things are things that are alive. Living things eat so that they can grow and develop. Non-living things have never been alive, they are just objects. 

A car, kite, and string are not alive. They do not grow or develop.  However, grass grows and develops, which means it is living. 

Example Question #3 : Life Science

Select the answer choice that is living. 

Possible Answers:

TV

Fish

Table 

Fork 

Correct answer:

Fish

Explanation:

The world is made up of both living and non-living things. 

Living things are things that are alive. Living things eat so that they can grow and develop. Non-living things have never been alive, they are just objects. 

A TV, fork, and table are not alive. They do not grow or develop.  However, fish grows and develops, which means it is living. 

Example Question #4 : Life Science

Plants survive by using their _________ to absorb water. We use a __________ to drink water.

Possible Answers:

stem; bones

roots; straw

leaves; arms

Correct answer:

roots; straw

Explanation:

Plants use their roots to absorb water from the ground to help them survive. Humans also need water to survive and a way we mimic (or copy) the way a plant solves this problem is by using a straw. We use a straw to drink water to help us live.

Example Question #5 : Life Science

The leaves of a water lily float on top of the water because they have a flat bottom. How can we mimic (or copy) plants to float on water?

Possible Answers:

Use our leaves

Humans cannot float

Use a raft

Correct answer:

Use a raft

Explanation:

Humans can copy water lilies and use a raft to float on the surface of the water. The leaves of a water lily float on the surface of the water with their flat bottoms so they can absorb sunlight. We can also float on top of the water but we do not have leaves like plants do.

Example Question #6 : Life Science

What external structures do plants have that help them survive?

Possible Answers:

Roots, stems, leaves, and flowers.

Roots, bones, hands, and flowers.

Feet, stems, arms, and flowers.

Correct answer:

Roots, stems, leaves, and flowers.

Explanation:

Plants have external structures used for survival. Roots are used to absorb water, the stem keeps a plant upright, leaves are used to absorb sunlight and carbon dioxide to make food, and the flowers are used for pollination.

Example Question #7 : Life Science

What is a human problem that can be solved by copying how plants survive?

Possible Answers:

Bicycle helmets are worn on top of the head just like plants grow above the ground.

Bicycle helmets are pretty just like flowers.

Bicycle helmets are hard just like the shell of an acorn.

Correct answer:

Bicycle helmets are hard just like the shell of an acorn.

Explanation:

One human problem that can be solved by mimicking (copying) plants is how we protect our heads on a bicycle. The shells of nuts like the acorn are hard and protect what is inside. Helmets are made to be hard and shaped like our heads to protect us if we fall.

Example Question #8 : Life Science

The thorns on a rose bush help keep predators away. Humans _______ plants and use barbed wire to keep predators away from livestock.

Possible Answers:

water

kill

mimic

Correct answer:

mimic

Explanation:

Humans often mimic plants to solve problems in their everyday life. Livestock such as goats or pigs are prey animals and can be eaten if not protected. The thorns on a rose bush will poke or cut something trying to eat it or climb up it. Barbed wire fences will cut or stick something that tries to climb in or out of the pasture.

Example Question #9 : Life Science

What does it mean to mimic someone or something?

Possible Answers:

To be friendly

To fight

To copy

Correct answer:

To copy

Explanation:

To mimic someone or something means to copy or act the same as. Little brothers and sisters like to mimic or copy older siblings to annoy them! Humans also mimic plants and animals to solve problems.

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