5th Grade Science : Life Science

Study concepts, example questions & explanations for 5th Grade Science

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Example Questions

Example Question #1 : Life Science

The process of plants making their own food with sunlight, carbon dioxide, and water is called __________. 

Possible Answers:

adaptation 

evolution 

reproduction 

photosynthesis 

Correct answer:

photosynthesis 

Explanation:

Plants make their own food through the process of photosynthesis. Plants convert sunlight, carbon dioxide, and water into chemical energy that is used for food. 

Example Question #5 : 5th Grade Science

Select the answer that is represented by point A on the diagram provided. 

1

Possible Answers:

Nuclear Membrane

Nucleolus

Cell Membrane

Nucleus

Correct answer:

Cell Membrane

Explanation:

There are four pieces of a cell shown on the diagram provided. 

Cell Membrane: The cell is contained by the cell membrane and it keeps all the pieces inside.  

Nucleus: The nucleus is known as the brain of a cell. The nucleus is a structure within the cell's structure. The nucleus isn't always in the middle of the cell, but it's usually not near an edge. 

Nucleolus: The nucleolus is within the nucleus, and can be thought of as the brain of the nucleus. 

Nuclear Membrane: The nuclear membrane surrounds the nucleus. 

2

Point A is pointing to the Cell Membrane. 

Example Question #1 : Life Science

Select the answer that is represented by point B on the diagram provided. 

1

Possible Answers:

Nucleus

Nucleolus

Nuclear Membrane

Cell Membrane

Correct answer:

Nucleus

Explanation:

There are four pieces of a cell shown on the diagram provided. 

Cell Membrane: The cell is contained by the cell membrane and it keeps all the pieces inside.  

Nucleus: The nucleus is known as the brain of a cell. The nucleus is a structure within the cell's structure. The nucleus isn't always in the middle of the cell, but it's usually not near an edge. 

Nucleolus: The nucleolus is within the nucleus, and can be thought of as the brain of the nucleus. 

Nuclear Membrane: The nuclear membrane surrounds the nucleus. 

2

Point B is pointing to the Nucleus. 

Example Question #7 : 5th Grade Science

Select the answer that is represented by point C on the diagram provided. 

1

Possible Answers:

Nuclear Membrane

Nucleus

Cell Membrane

Nucleolus

Correct answer:

Nucleolus

Explanation:

There are four pieces of a cell shown on the diagram provided. 

Cell Membrane: The cell is contained by the cell membrane and it keeps all the pieces inside.  

Nucleus: The nucleus is known as the brain of a cell. The nucleus is a structure within the cell's structure. The nucleus isn't always in the middle of the cell, but it's usually not near an edge. 

Nucleolus: The nucleolus is within the nucleus, and can be thought of as the brain of the nucleus. 

Nuclear Membrane: The nuclear membrane surrounds the nucleus. 

2

Point C is pointing to the Nucleolus. 

Example Question #1 : 5th Grade Science

Select the answer that is represented by point D on the diagram provided. 

1

Possible Answers:

Cell Membrane

Nucleolus

Nuclear Membrane

Nucleus

Correct answer:

Nuclear Membrane

Explanation:

There are four pieces of a cell shown on the diagram provided. 

Cell Membrane: The cell is contained by the cell membrane and it keeps all the pieces inside.  

Nucleus: The nucleus is known as the brain of a cell. The nucleus is a structure within the cell's structure. The nucleus isn't always in the middle of the cell, but it's usually not near an edge. 

Nucleolus: The nucleolus is within the nucleus, and can be thought of as the brain of the nucleus. 

Nuclear Membrane: The nuclear membrane surrounds the nucleus. 

2

Point D is pointing to the Nuclear Membrane. 

Example Question #1 : Argue That Plants Need Air/Water To Grow

Plants and trees can grow in a wide variety of environments. Whether they grow in the desert or the rainforest, they all have one thing in common, air and water are necessary for life and growth. Depending on the plant's adaptations, the amount of water needed to survive varies. Some plants, like those in the desert, need very little water to grow. Plants primarily get the materials for growth from the air and water. Sunlight provides the energy that is required to create food through photosynthesis. We often see plants in soil, but it isn't necessary for growth.

Hydroponics is a system of growing plants without soil. Nutrients are added to water and delivered directly through a plant's roots. Plants do not gain anything from the earth itself; they absorb nutrients from within the soil. If those nutrients are added to the water, and the plant is in the open air, then the soil is not needed. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Hydroponics come in numerous forms: the plants can be hung vertically, and the roots are sprayed, or roots may be submerged in water through a series of tubs, containers, or even coconut husks!

Why is air so important for a plant's growth?

Possible Answers:

Plants absorb carbon dioxide from the air to use during photosynthesis.

Air is absorbed into the roots of the plants to provide the necessary oxygen.

Air is not essential for a plant's growth; they can live without it.

Plants breathe oxygen that they absorb from the air.

Correct answer:

Plants absorb carbon dioxide from the air to use during photosynthesis.

Explanation:

Air is vital to a plant's growth and survival. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Without air, plants would not be able to create glucose and would die. They must have access to carbon dioxide to survive.

Example Question #1 : Life Science

Plants and trees can grow in a wide variety of environments. Whether they grow in the desert or the rainforest, they all have one thing in common, air and water are necessary for life and growth. Depending on the plant’s adaptations, the amount of water needed to survive varies. Some plants, like those in the desert, need very little water to grow. Plants primarily get the materials for growth from the air and water. Sunlight provides the energy that is required to create food through photosynthesis. We often see plants in soil, but it isn’t necessary for growth.

Hydroponics is a system of growing plants without soil. Nutrients are added to water and delivered directly through a plant’s roots. Plants do not gain anything from the earth itself; they absorb nutrients from within the soil. If those nutrients are added to the water, and the plant is in the open air, then the soil is not needed. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Hydroponics come in numerous forms: the plants can be hung vertically, and the roots are sprayed, or roots may be submerged in water through a series of tubs, containers, or even coconut husks!

Why is water important to a plant's survival?

Possible Answers:

Water transports nutrients to plants and keeps them cool during transpiration.

Water is necessary to clean the plants and keep predators off of them.

Water is not crucial to a plant's survival or growth.

Water soaks into the plant and provides it with the carbon dioxide needed.

Correct answer:

Water transports nutrients to plants and keeps them cool during transpiration.

Explanation:

Water is one of just a few things plants need to survive. Water supports the transportation of nutrients, from the soil up into the structures of the plant, is used in the process of photosynthesis, helps keep plants standing stiff and upright and not wilted or droopy, and water helps keep plants cool as it evaporates from the leaves. If plants do not have access to water, they will not absorb the nutrients needed to grow.

Example Question #2 : Argue That Plants Need Air/Water To Grow

A few students in a science lab are arguing about a plant's needs for survival.

Logan: "Plants only need air to grow and survive."

Sophia: "Plants need both water and air to grow and survive."

Bryce: "Plants only need water to grow and survive."

Topanga: "Plants do not need water or air to grow and survive."

Which student is correct and why?

Possible Answers:

Logan is correct because plants need air in order to get carbon dioxide for photosynthesis.

Sophia is correct because plants need air to get carbon dioxide for photosynthesis and water for hydration and nutrients.

Topanga is correct because plants do not need air or water to survive; they need soil and sunlight.

Bryce is correct because plants need water for hydration and nutrients.

Correct answer:

Sophia is correct because plants need air to get carbon dioxide for photosynthesis and water for hydration and nutrients.

Explanation:

Sophia is correct in the argument about a plant's needs for survival. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Water supports the transportation of nutrients, from the soil up into the structures of the plant, is used in the process of photosynthesis, helps keep plants standing stiff and upright and not wilted or droopy, and water helps keep plants cool as it evaporates from the leaves. Water and air are vital to a plant's growth and survival.

Example Question #2 : Life Science

Plants get the materials they need for growth chiefly from air and water.

Possible Answers:

False

True

Correct answer:

True

Explanation:

The statement provided is true. Plants need sunlight for the process of photosynthesis but the materials they need for growth primarily come from water and air. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Water supports the transportation of nutrients, from the soil up into the structures of the plant, is used in the process of photosynthesis, helps keep plants standing stiff and upright and not wilted or droopy, and water helps keep plants cool as it evaporates from the leaves.

Example Question #2 : Life Science

Plants and trees can grow in a wide variety of environments. Whether they grow in the desert or the rainforest, they all have one thing in common, air and water are necessary for life and growth. Depending on the plant’s adaptations, the amount of water needed to survive varies. Some plants, like those in the desert, need very little water to grow. Plants primarily get the materials for growth from the air and water. Sunlight provides the energy that is required to create food through photosynthesis. We often see plants in soil, but it isn’t necessary for growth.

Hydroponics is a system of growing plants without soil. Nutrients are added to water and delivered directly through a plant’s roots. Plants do not gain anything from the earth itself; they absorb nutrients from within the soil. If those nutrients are added to the water, and the plant is in the open air, then the soil is not needed. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Hydroponics come in numerous forms: the plants can be hung vertically, and the roots are sprayed, or roots may be submerged in water through a series of tubs, containers, or even coconut husks!

What three things help a plant to grow?

Possible Answers:

Air, water, and sunlight

Soil, air, and water

Sunlight, soil, and water

Water, soil, and photosynthesis

Correct answer:

Air, water, and sunlight

Explanation:

Water, air, and sunlight are the most important things that a plant needs for growth. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. Water supports the transportation of nutrients, from the soil up into the structures of the plant, is used in the process of photosynthesis, helps keep plants standing stiff and upright and not wilted or droopy, and water helps keep plants cool as it evaporates from the leaves. Soil is not necessary if the water is nutrient-rich.

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