5th Grade Science : Life Science
Study concepts, example questions & explanations for 5th Grade Science
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Example Questions
Example Question #4 : Argue That Plants Need Air/Water To Grow
True or False: For a seed to germinate, it must receive an adequate amount of water.
False
True
True
The statement "For a seed to germinate, it must receive an adequate amount of water." is true. The seed is a small part of a plant and contains the embryo, a tiny new plant. If this seed has the right conditions, including an adequate amount of water, it will germinate, and a new plant will sprout. Without water, the seed will not grow, and no new plants will form.
Example Question #5 : Argue That Plants Need Air/Water To Grow
Plants must have water to grow. What structure of the plant absorbs water?
Roots
Stem
Flower
Leaves
Roots
Humans and animals take in water by drinking it with their mouths. Plants need water but do not have the same structures or parts as humans and animals. The roots of a plant absorb moisture from the soil to hydrate the plant. If the roots are damaged and cannot absorb water, the plant will not survive.
Example Question #1 : Argue That Plants Need Air/Water To Grow
What purpose(s) does air serve for plants?
Plants need air to fill their lungs and create carbon dioxide.
Plants need air for the process of deposition and interrogation.
Plants do not need air to survive because they cannot breathe.
Plants need air for the processes of photosynthesis and respiration.
Plants need air for the processes of photosynthesis and respiration.
In photosynthesis, plants take in carbon dioxide from the air and combine it with water absorbed through their roots. They use energy from sunlight to turn these ingredients into carbohydrates (sugars) and oxygen, and they release extra oxygen to the air. Plants need oxygen to survive, and plant cells are continually using oxygen. Respiration in plants is the process of cells releasing energy for their use by breaking down sugars and using up oxygen. Plants need oxygen for the two functions to run efficiently.
Example Question #1 : Growth Needs Of Plants
A group of students had two identical trays of soil, each with ten tomato seedlings planted in them. Tray A was placed in the dark. Tray B was placed in direct sunlight. Both trays were given the same amount of water. After four weeks, the students observed both trays. Which tray of seedlings will have the most growth?
Tray B will have had more growth because plants need sunlight to grow.
Both of the trays will have the same growth because they both received equal amounts of water.
Neither tray will have any growth because they did not add fertilizer, which plants need.
Tray A will have had more growth because plants grow best in dark environments.
Tray B will have had more growth because plants need sunlight to grow.
In this scenario, the plants with the most growth would be the plants in tray B. The plants in tray B received not only water (which plants must have to survive) but also sunlight. Plants need sunlight for the process of photosynthesis. If plants do not have access to air and sunlight, they cannot make their food and survive. The plants in tray A were deprived of sunlight, so they will not have as much growth as tray B.
Example Question #8 : Argue That Plants Need Air/Water To Grow
Patrick removes the roots from his plant. Which plant activity will be affected the most?
Reproduction
Finding nutrients
Getting water
Making food
Getting water
Plants' roots are vital to the absorption of water. The roots of the plant not only hold it in place to keep it steady, but they also absorb moisture from the soil. If the roots are removed, there will be nothing to absorb and hold water leaving the plant dehydrated and unable to survive.
Example Question #1 : Support How Plants Need Air And Water To Grow
When humans or animals need energy, they find some food to eat. Plants do not get food in the same way. Plants must take materials from the environment and use energy from sunlight to make glucose, an energy-rich sugar. Plants use water and air to make food. Plants absorb water from the soil and take it in through their roots. The water travels up the stem and reaches the cells in the leave. Plants must have water to allow the nutrients to be absorbed. Plants allow carbon dioxide from the air to enter their leaves through tiny holes, and it enters the leaf cells. Without air, plants would be missing one of the ingredients necessary to create glucose.
Plants take light energy from sunlight to make their food. Light energy is not a material; it is an energy. Leaf cells trap light energy and use it to convert water and carbon dioxide into sugar. The sugar is stored as chemical energy in the plant. When this process takes place, leaf cells release oxygen as a byproduct. This process is called photosynthesis.
Which piece of text evidence supports why plants need air to grow?
Without air, plants would be missing one of the ingredients necessary to create glucose.
Plants must have water to allow the nutrients to be absorbed.
When this process takes place, leaf cells release oxygen as a byproduct.
Plants must take materials from the environment and use energy from sunlight to make glucose, an energy-rich sugar.
Without air, plants would be missing one of the ingredients necessary to create glucose.
Air is necessary for plants to grow and survive. Plants take in carbon dioxide from the air and convert it into glucose through the process of photosynthesis, which is powered by sunlight. The piece of text evidence that supports this claim is, "Without air, plants would be missing one of the ingredients necessary to create glucose.". This piece of evidence is clear, based on scientific facts and processes, and is reasonable. It also provides the necessary support for the claim.
Example Question #2 : Support How Plants Need Air And Water To Grow
When humans or animals need energy, they find some food to eat. Plants do not get food in the same way. Plants must take materials from the environment and use energy from sunlight to make glucose, an energy-rich sugar. Plants use water and air to make food. Plants absorb water from the soil and take it in through their roots. The water travels up the stem and reaches the cells in the leave. Plants must have water to allow the nutrients to be absorbed. Plants allow carbon dioxide from the air to enter their leaves through tiny holes, and it enters the leaf cells. Without air, plants would be missing one of the ingredients necessary to create glucose.
Plants take light energy from sunlight to make their food. Light energy is not a material; it is an energy. Leaf cells trap light energy and use it to convert water and carbon dioxide into sugar. The sugar is stored as chemical energy in the plant. When this process takes place, leaf cells release oxygen as a byproduct. This process is called photosynthesis.
Which piece of text evidence from the passage supports the claim that plants need water to grow?
Plants must take materials from the environment and use energy from sunlight to make glucose, an energy-rich sugar.
Leaf cells trap light energy and use it to convert water and carbon dioxide into sugar.
Plants must have water to allow the nutrients to be absorbed.
Plants allow carbon dioxide from the air to enter their leaves through tiny holes, and it enters the leaf cells.
Plants must have water to allow the nutrients to be absorbed.
Water is necessary for plants to live and grow. The passage makes a claim, and it is supported by information and text evidence. One piece of text evidence that supports water's importance in a plant's survival is, "Plants must have water to allow the nutrients to be absorbed.". This piece of evidence is clear, based on scientific facts and processes, and is reasonable. It supports the claim and helps readers understand how important water is in the plant's life cycle.
Example Question #3 : Support How Plants Need Air And 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!
How does this passage support the claim that air and water are vital to a plant's growth?
This passage does not support the claim that air and water are vital to a plant's growth or survival.
This passage provides information about how the plant uses air and water and why those materials are vital to the processes for growth.
This passage provides specific data, facts, and experimental evidence to support the claim that water and air are vital to a plant's growth.
This passage presents a case study about plants with and without water and air for readers to examine and draw conclusions from.
This passage provides information about how the plant uses air and water and why those materials are vital to the processes for growth.
Anyone can claim a scientific fact, but it is not valid unless there is evidence or information to support the claim. This passage provides information about how the plant uses air and water and why those materials are vital to the processes for growth. The text gives an example of hydroponics to disprove the misconception that plants must have soil to survive and thoroughly explains what the plants need air adn water for and how the materials are processed to aid in the growth and survival process.
Example Question #4 : Support How Plants Need Air And Water To Grow
Which structures of a plant are used in the absorption of water and carbon dioxide from the air?
Roots and leaves
Flowers and stems
Leaves and flowers
Petals and stems
Roots and leaves
The leaves and roots of a plant are vital in the collection of water and carbon dioxide. Plants must take materials from the environment and use energy from sunlight to make glucose, an energy-rich sugar. Plants use water and air to make food. Plants absorb water from the soil and take it in through their roots. The water travels up the stem and reaches the cells in the leave. Plants must have water to allow the nutrients to be absorbed. Plants allow carbon dioxide from the air to enter their leaves through tiny holes, and it enters the leaf cells. Without air, plants would be missing one of the ingredients necessary to create glucose.
Example Question #3 : Support How Plants Need Air And Water To Grow
In 1642 most people thought that soil was the food for plants. Dr. Von Helmont from Belgium experimented on this topic for many years. He planted a 5-pound tree in a bucket with 200 pounds of soil. He watered the tree every day but did not add any more dirt. Von Helmont weighed the bucket after five years of allowing it to grow. The plant weighed 5 pounds, and the soil was 200 pounds at the beginning of the experiment. At the end of the research, in 1647, the plant weighed 169 pounds, and the soil was 199 pounds.
Based on Dr. Von Helmont's research, is soil the source of food for plants? Why or why not?
No, the soil is not the plant's source of food. There was only one pound of dirt missing at the end of the experiment. More soil would be missing if it were the primary source of food.
Yes, the soil is the plant's source of food. The plant consumed one pound of food over five years. This supports that the plants need to eat dirt.
There is not enough information in this passage to determine if the plant's primary source of food is soil or if something else provides its nutrients.
Soil may be the primary source of food for the plant, but Dr. Von Helmont did not complete the experiment correctly. He should have weighed the plant more than two times.
No, the soil is not the plant's source of food. There was only one pound of dirt missing at the end of the experiment. More soil would be missing if it were the primary source of food.
Based on Dr. Von Helmont's research soil is not the main source of food for a plant. The weight of soil was only reduced by one pound in five years which alludes to the fact that something else may be providing the food with nutrients. In reality, plants are not eating or using the soil as food, they use materials from the air and water as well as sunlight to make their own food. 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.
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