Life Science - 2nd Grade Science
Card 0 of 128
Justin wants to plan an investigation to see if a plant can live without sunlight or water. What list of materials is appropriate for this type of investigation?
Justin wants to plan an investigation to see if a plant can live without sunlight or water. What list of materials is appropriate for this type of investigation?
If Justin wants to plan an investigation, an important part is to have the right supplies or materials. Justin will need two plants, one to place in the sunlight and one in the dark, water for the plant in the sunshine, a ruler to measure growth, and paper and pencil to record observations. The other lists are incomplete or have materials that are not needed for this investigation.
If Justin wants to plan an investigation, an important part is to have the right supplies or materials. Justin will need two plants, one to place in the sunlight and one in the dark, water for the plant in the sunshine, a ruler to measure growth, and paper and pencil to record observations. The other lists are incomplete or have materials that are not needed for this investigation.
Compare your answer with the correct one above
Brandon is curious about what keeps plants alive and helps them to grow. Which answer choice is a testable, scientific question that relates to the topic?
Brandon is curious about what keeps plants alive and helps them to grow. Which answer choice is a testable, scientific question that relates to the topic?
Most investigations or experiments start with a question. In this case, Brandon is wondering about keeping plants alive and helping them grow. A scientific question must be testable, meaning someone can collect data and observations, and it should be related to what the person was wondering. The correct answer choice is testable and related. Water and sunlight are essential to a plant's survival, so they would be good variables to test.
Most investigations or experiments start with a question. In this case, Brandon is wondering about keeping plants alive and helping them grow. A scientific question must be testable, meaning someone can collect data and observations, and it should be related to what the person was wondering. The correct answer choice is testable and related. Water and sunlight are essential to a plant's survival, so they would be good variables to test.
Compare your answer with the correct one above
Animals disperse (or spread) the seeds of plants they eat. Seeds exit the digestive system of a bat while they are flying around eating fruit from different plants. When the seeds land on the ground, new plants may be formed. How can humans mimic the bat and disperse seeds?
Animals disperse (or spread) the seeds of plants they eat. Seeds exit the digestive system of a bat while they are flying around eating fruit from different plants. When the seeds land on the ground, new plants may be formed. How can humans mimic the bat and disperse seeds?
If humans want to develop a model for mimicking a bat dispersing seeds, the best answer choice would be to throw seeds out of a car window while driving. By tossing the seeds, it gives the change for a new plant to grow when they land in the dirt outside of the car. Humans can create models and devices to mimic animals that help keep new plants growing.
If humans want to develop a model for mimicking a bat dispersing seeds, the best answer choice would be to throw seeds out of a car window while driving. By tossing the seeds, it gives the change for a new plant to grow when they land in the dirt outside of the car. Humans can create models and devices to mimic animals that help keep new plants growing.
Compare your answer with the correct one above
Which answer choice correctly uses the term mimic?
Which answer choice correctly uses the term mimic?
To mimic means to copy, impersonate, or imitate something or someone. "To mimic a butterfly pollinating flowers, I need to have wings and fly around." is the correct answer choice because it uses the word correctly. In the sentence, the author is trying to copy a butterfly pollinating flowers and would need wings to accomplish this. The other sentences use mimic incorrectly.
To mimic means to copy, impersonate, or imitate something or someone. "To mimic a butterfly pollinating flowers, I need to have wings and fly around." is the correct answer choice because it uses the word correctly. In the sentence, the author is trying to copy a butterfly pollinating flowers and would need wings to accomplish this. The other sentences use mimic incorrectly.
Compare your answer with the correct one above
One way that seeds travel from place to place is through animal poo! How does animal poo help to transport seeds and allow new plants to grow?
One way that seeds travel from place to place is through animal poo! How does animal poo help to transport seeds and allow new plants to grow?
Animals that spread seed through their excrement (or poo) have first to eat fruits, vegetables, or plants with seeds. Bears, bats, monkeys, and turtles would be the types of animals that would spread seeds through their poo. As they move around their environment, the seeds exit their digestive system and land in a new place. When this happens, the seeds are relocated and may form new plants where they land.
Animals that spread seed through their excrement (or poo) have first to eat fruits, vegetables, or plants with seeds. Bears, bats, monkeys, and turtles would be the types of animals that would spread seeds through their poo. As they move around their environment, the seeds exit their digestive system and land in a new place. When this happens, the seeds are relocated and may form new plants where they land.
Compare your answer with the correct one above
Bumblebees pollinate flowers that have nectar and pollen. The pollen from one flower sticks to them while they feed, and it is dropped into another flower when they move to the next plant to eat.
If humans wanted to use something that mimicked a bumblebee to pollinate their flowers, which item would be best?
Bumblebees pollinate flowers that have nectar and pollen. The pollen from one flower sticks to them while they feed, and it is dropped into another flower when they move to the next plant to eat.
If humans wanted to use something that mimicked a bumblebee to pollinate their flowers, which item would be best?
To build a model of a bumblebee, a human could select felt, velcro, or tape as the material to make the animal. Felt is soft, textured, and made of cloth so the pollen dust would stick to the fabric. Velcro is textured, and things stick to it. The tape is very sticky, and pollen would attach itself to the sticky side to be carried around. All of the answer choices are correct and could be used to model a bumblebee.
To build a model of a bumblebee, a human could select felt, velcro, or tape as the material to make the animal. Felt is soft, textured, and made of cloth so the pollen dust would stick to the fabric. Velcro is textured, and things stick to it. The tape is very sticky, and pollen would attach itself to the sticky side to be carried around. All of the answer choices are correct and could be used to model a bumblebee.
Compare your answer with the correct one above
Hummingbirds pollinate tube-shaped flowers that have nectar and pollen. Their beak picks up pollen from one flower while they feed, and it is dropped into another flower when they move to the next plant to eat.
If humans wanted to use something that mimicked a hummingbird to pollinate their flowers, which item would be the worst?
Hummingbirds pollinate tube-shaped flowers that have nectar and pollen. Their beak picks up pollen from one flower while they feed, and it is dropped into another flower when they move to the next plant to eat.
If humans wanted to use something that mimicked a hummingbird to pollinate their flowers, which item would be the worst?
The items that would best be used to mimic an animal pollinating a flower would be the paintbrush, twig, or the straw. They would be thin enough to fit into the flower and have the end transfer or pick up the pollen. The sponge would be too broad and would not have the right materials for the dust to stick.
The items that would best be used to mimic an animal pollinating a flower would be the paintbrush, twig, or the straw. They would be thin enough to fit into the flower and have the end transfer or pick up the pollen. The sponge would be too broad and would not have the right materials for the dust to stick.
Compare your answer with the correct one above
Bats are a common pollinator of plants. Many people are afraid of bats and think they are dangerous or even attack people! Bats are very helpful to humans because they help spread pollen from plant to plant. What feature do bats have that help them get from plant to plant to spread pollen?
Bats are a common pollinator of plants. Many people are afraid of bats and think they are dangerous or even attack people! Bats are very helpful to humans because they help spread pollen from plant to plant. What feature do bats have that help them get from plant to plant to spread pollen?
Bats fly from plant to plant eatings fruit and picking up pollen as they move. When bats fly, they use their wings. When a bat lands on another plant, some of the powder falls off and is deposited into the stamen of the flower for reproduction. New plants are formed when this pollen is spread, and new seeds form.
Bats fly from plant to plant eatings fruit and picking up pollen as they move. When bats fly, they use their wings. When a bat lands on another plant, some of the powder falls off and is deposited into the stamen of the flower for reproduction. New plants are formed when this pollen is spread, and new seeds form.
Compare your answer with the correct one above
Which habitat shows the most diversity in plant species?
Which habitat shows the most diversity in plant species?
The habitat that shows the most diversity in plant species is the jungle. In the jungle photo, there are multiple plant species shown, whereas the desert, Arctic, and grasslands show many fewer varieties of plants. The Amazon rainforest has 80,000 plant species, whereas the Sahara desert only has 500.
The habitat that shows the most diversity in plant species is the jungle. In the jungle photo, there are multiple plant species shown, whereas the desert, Arctic, and grasslands show many fewer varieties of plants. The Amazon rainforest has 80,000 plant species, whereas the Sahara desert only has 500.
Compare your answer with the correct one above
There are diverse plant species all over the world, and they vary in each habitat.
There are diverse plant species all over the world, and they vary in each habitat.
The statement is true because plant species are diverse and live in many different habitats around the world. Plants adapt to their environment and are perfectly suited to living in that location. Some habitats feature many species of plants, while others only host a few.
The statement is true because plant species are diverse and live in many different habitats around the world. Plants adapt to their environment and are perfectly suited to living in that location. Some habitats feature many species of plants, while others only host a few.
Compare your answer with the correct one above
Which habitat shows the least diversity in plant species?
Which habitat shows the least diversity in plant species?
The habitat that shows the least diversity in plant species is the Arctic tundra. In the other environments, there are at least one plant species, if not more. The Amazon jungle is home to nearly 80,000 plant species, and forests house a diverse population of plants as well. The grasslands only show one plant species, but depending on the area, there can be more.
The habitat that shows the least diversity in plant species is the Arctic tundra. In the other environments, there are at least one plant species, if not more. The Amazon jungle is home to nearly 80,000 plant species, and forests house a diverse population of plants as well. The grasslands only show one plant species, but depending on the area, there can be more.
Compare your answer with the correct one above
Select the best example of a habitat for a fish.
Select the best example of a habitat for a fish.
A habitat is a home of a plant or animal.
Fish live in water, so given the answer options the ocean is the best choice. A fish would not be able to survive in a forest, desert, or on land.
A habitat is a home of a plant or animal.
Fish live in water, so given the answer options the ocean is the best choice. A fish would not be able to survive in a forest, desert, or on land.
Compare your answer with the correct one above
Select the best example of a habitat for an owl.
Select the best example of a habitat for an owl.
A habitat is a home of a plant or animal.
An owl is a type of bird that lives in trees, which are found in forests. Owls could not survive in the sea, ocean, or river because they can't swim. Also, they eat rodents, which are not found in bodies of water.
A habitat is a home of a plant or animal.
An owl is a type of bird that lives in trees, which are found in forests. Owls could not survive in the sea, ocean, or river because they can't swim. Also, they eat rodents, which are not found in bodies of water.
Compare your answer with the correct one above
Select the best example of a habitat for a whale.
Select the best example of a habitat for a whale.
A habitat is a home of a plant or animal.
Whales live in water, which means forest and desert are not the correct habitats for a whale. A pond is a small body of water, and most ponds are not very deep. Whales are large animals that require a lot of space, making ocean the best habitat a whale.
A habitat is a home of a plant or animal.
Whales live in water, which means forest and desert are not the correct habitats for a whale. A pond is a small body of water, and most ponds are not very deep. Whales are large animals that require a lot of space, making ocean the best habitat a whale.
Compare your answer with the correct one above
Select the best example of a habitat for a deer.
Select the best example of a habitat for a deer.
habitat is a home of a plant or animal.
A deer is an animal that lives on the land, and they eat a lot of plants. They can't survive is very hot temperatures, which makes a desert a bad habitat for deer. Also, deers can't swim which would make an ocean and a river bad habitats for deer.
habitat is a home of a plant or animal.
A deer is an animal that lives on the land, and they eat a lot of plants. They can't survive is very hot temperatures, which makes a desert a bad habitat for deer. Also, deers can't swim which would make an ocean and a river bad habitats for deer.
Compare your answer with the correct one above
What does the term mimic mean? Example: I built a model to mimic an animal; it can dig just like a dog!
What does the term mimic mean? Example: I built a model to mimic an animal; it can dig just like a dog!
The term mimic means to copy or imitate someone or something. In the case of the example, the model mimics digging like a dog. This means the model is copying the way a dog can dig and doing it the same way.
The term mimic means to copy or imitate someone or something. In the case of the example, the model mimics digging like a dog. This means the model is copying the way a dog can dig and doing it the same way.
Compare your answer with the correct one above
Gary is investigating whether plants need and sunlight to grow. He experimented, and the data table shows his results. Based on this info, what can be concluded about the plants' need for water and sunlight?
Gary is investigating whether plants need and sunlight to grow. He experimented, and the data table shows his results. Based on this info, what can be concluded about the plants' need for water and sunlight?
Collecting data and making observations during an investigation provides the information necessary to draw a conclusion. Based on the information provided, only "Plant 1" received water and sunlight, and it was the only plant that grew and looked healthy. The conclusion "Plants that did not get both sunlight and water did not grow, and some did not survive." is supported by the evidence provided.
Collecting data and making observations during an investigation provides the information necessary to draw a conclusion. Based on the information provided, only "Plant 1" received water and sunlight, and it was the only plant that grew and looked healthy. The conclusion "Plants that did not get both sunlight and water did not grow, and some did not survive." is supported by the evidence provided.
Compare your answer with the correct one above
Susan is investigating whether plants need and sunlight to grow. She experimented, and the data table shows her results. Based on this info, which plant seemed to do the best and why?
Susan is investigating whether plants need and sunlight to grow. She experimented, and the data table shows her results. Based on this info, which plant seemed to do the best and why?
Collecting data and making observations during an investigation provides the information necessary to draw a conclusion. Based on the information provided, only "Plant 1" received water and sunlight, and it was the only plant that grew and looked healthy. The conclusion that Plant 1 did the best is supported by its appearance and the fact that it survived.
Collecting data and making observations during an investigation provides the information necessary to draw a conclusion. Based on the information provided, only "Plant 1" received water and sunlight, and it was the only plant that grew and looked healthy. The conclusion that Plant 1 did the best is supported by its appearance and the fact that it survived.
Compare your answer with the correct one above
Sharon is doing a school project to see if plants must have both water AND sunlight to grow. She decides to put some plants in a window and others in a dark closet. She waters one in the sunshine and one that is in the dark. Sharon forgets to write down her observations and measurements when she studies the plants each day. She makes up the day, a conclusion, and turns it into her teacher. Can we trust Sharon's outcome, why or why not?
Sharon is doing a school project to see if plants must have both water AND sunlight to grow. She decides to put some plants in a window and others in a dark closet. She waters one in the sunshine and one that is in the dark. Sharon forgets to write down her observations and measurements when she studies the plants each day. She makes up the day, a conclusion, and turns it into her teacher. Can we trust Sharon's outcome, why or why not?
Sharon's conclusion cannot be trusted. She only did part of the investigation entirely, so she made up the data that she turned in and based her conclusion on. Conclusions need to be based on accurate and truthful data collection to be trusted. Sharon would have to repeat the investigation correctly to believe the new outcome.
Sharon's conclusion cannot be trusted. She only did part of the investigation entirely, so she made up the data that she turned in and based her conclusion on. Conclusions need to be based on accurate and truthful data collection to be trusted. Sharon would have to repeat the investigation correctly to believe the new outcome.
Compare your answer with the correct one above
Keith forgot to water his new plant for almost a whole week. When he checked on it, the plant was wilted, and the leaves were turning brown. He had it in the sunlight as the directions said, but it didn't look right. What happened to Keith's plant, and why?
Keith forgot to water his new plant for almost a whole week. When he checked on it, the plant was wilted, and the leaves were turning brown. He had it in the sunlight as the directions said, but it didn't look right. What happened to Keith's plant, and why?
Keith's plant was wilting and turning brown because it did not have any water for almost a whole week. Plants need both water and sunlight to grow and survive. His plant had sunshine and was still dying because plants must have BOTH to do well. Keith didn't mean to perform an investigation about this topic, but his real-world experience can help him to learn and answer a scientific question with evidence.
Keith's plant was wilting and turning brown because it did not have any water for almost a whole week. Plants need both water and sunlight to grow and survive. His plant had sunshine and was still dying because plants must have BOTH to do well. Keith didn't mean to perform an investigation about this topic, but his real-world experience can help him to learn and answer a scientific question with evidence.
Compare your answer with the correct one above