3rd Grade Science : Life Science
Study concepts, example questions & explanations for 3rd Grade Science
All 3rd Grade Science Resources
Example Questions
Example Question #4 : Argue That In A Habitat Some Organisms Cannot Survive
The Sahara Desert: The Sahara Desert is made entirely of sand. It rarely rains and is very dry. There are only a few plants, and they have small leaves. The sand is scorching and moves every time it is touched; when the wind blows, the sand shifts in all directions.
Which organism would NOT survive in this habitat, and why?
A deer would not survive because there is nowhere to camouflage itself.
A saguaro cactus would not survive in this environment because it is from deserts in Arizona.
A rattlesnake would not survive because there is no prey for the snake to hunt and eat.
A hawk would not survive because there are no open areas to hunt animals.
A deer would not survive because there is nowhere to camouflage itself.
In this habitat, the deer would not survive. Deer need woodlands or tall grass to blend in and camouflage from predators. They have hooves that are not suited to the shifting, scorching sands. The deer would not survive in this habitat because it is not adapted to live there.
Example Question #5 : Argue That In A Habitat Some Organisms Cannot Survive
Which animal would NOT survive living in a saltwater ocean, and why?
An orca would not survive because they are not adapted to living in saltwater.
A dolphin would not survive because they are not adapted to living in saltwater.
A sea turtle would not survive because they are not adapted to living in saltwater.
An alligator would not survive because they are not adapted to living in saltwater.
An alligator would not survive because they are not adapted to living in saltwater.
An alligator would not survive living in the saltwater ocean. An alligator is an aquatic creature meaning it lives in water, but it lives in freshwater. Alligators are found in ponds, swamps, or lakes. An alligator does not have the right traits to survive living in saltwater.
Example Question #6 : Argue That In A Habitat Some Organisms Cannot Survive
Jackson wants to get a pet lizard for his bedroom. He has a tank with sand, a small water bowl, a heat lamp, and low humidity. He goes to the pet store with his brother to pick one out. The lizards come from many different habitats and have special needs that must be met. Which habitat should Jackson NOT get a lizard from for the type of tank he has?
None of the answer choices are correct
A wet habitat
A cold habitat
A humid habitat
All of the answer choices are correct
All of the answer choices are correct
Jackson's tank is not humid, cold, or wet, so any lizards from those types of habitats would not survive. Jackson needs to find a lizard that requires the kind of tank he has. It must be able to live in low humidity, high temperatures, and on the sand with limited water.
Example Question #123 : Life Science
A sunflower plant can survive in all types of environments and habitats.
False
True
False
The statement in the question is false. Sunflowers are adapted to live in specific areas based on their roots, pollination requirements, water intake, water storage, and sunlight requirements. If moved to an area that does not have the conditions necessary to meet the plant's needs, it will not survive.
Example Question #131 : 3rd Grade Science
Kathryn planted beautiful tall shrubs in her backyard to create a shady area to sit and read her books. After a few weeks, she notices that her sunflower plant stems are leaning to the left as opposed to standing straight. She sees the leaves just barely reaching the sunlight, and the rest of the plant is engulfed in the shade. A few more weeks pass, and the plants are leaning even more to the left! This time their leaves are almost entirely in the sunshine.
How and why did the plants change in response to the difference in their environment?
The plants leaned to the left to reach the sunlight. Plants need sunlight to get tan.
The plants leaned to the left to reach the sunlight. Plants need sunlight to make their food.
The plants leaned to the right and upwards to reach the sunlight. Plants need sunlight to make their food.
The plants did not change as a result of their environment. They changed their position because it was more comfortable.
The plants leaned to the left to reach the sunlight. Plants need sunlight to make their food.
Kathryn did not realize when she planted the shrubs in her yard that she would not only shade her reading spot, but she would change the environment for her sunflower plants too. The plants were covered in shade, and they need sunlight to make their food. The plant cannot get up and walk away because they have rooted in the soil, so instead, the stem and leaves lean in the direction of the sunlight. Over time the plant can lean far enough to collect the sunlight it needs.
Example Question #1 : Environmental Changes That Cause Problems
Plants will open their leaves during the daytime to collect sunlight. At night they will close their leaves up to conserve water.
What environmental change is causing the plants to react and make a change?
The plants are reacting to the outdoor temperature.
The plants are not reacting to anything in the environment.
The plants are reacting to the movement of the clouds as they block the sunlight.
The plants are reacting to the daily cycle of light and dark.
The plants are reacting to the daily cycle of light and dark.
The plants are reacting and making a change based on their environment and the changes happening around them. The plants are responding to the daily cycle of light and dark. This environmental change causes the plants to open or close their leaves, and it is done daily.
Example Question #1 : Environmental Changes That Cause Problems
Chloe added some new plants to her garden that she got from a friend. She noticed within a few days, her plants were getting brown spots, and the leaves were wilting. She saw spots like this on her friend's plants but didn't think anything of it. She researches it and thinks her plants might be sick.
What environmental change may have caused this problem with her plants?
The new plants she brought home must have had a disease.
The temperature has recently dropped, and now the plants are sick.
Chloe must not have been taking care of the plants so they got sick.
There has been less rain, and this has caused the plants to get sick.
The new plants she brought home must have had a disease.
Chloe's plants have experienced an environmental change with the introduction of new plants. Chloe mentioned that she noticed spots on the plants she brought home but didn't pay much attention. This is a clue that the new plants were probably already sick. This type of environmental change is common in forests and natural areas as well. People plant invasive plants that wipe out notice plants or accidentally bring home diseased plants, and it spreads through the plants that are already living there.
Example Question #4 : Explain How Plants May Change Due To Environmental Changes
Environmental changes can cause problems for plants.
False
True
True
This statement is true. There are environmental changes that can cause problems or adverse effects on plants. If diseased plants are brought to a garden of healthy plants, the sickness can be spread through all of the plants. New roadways being built can cause trees to be cut down, and that would be a significant problem for the plants.
Example Question #2 : Environmental Changes That Cause Problems
Fruit and vegetable plants rely on pollinators to spread pollen from flower to flower for reproduction. To make new plants, the pollen has to be transported.
What changes may occur to the plants if there are no pollinators?
There will be more plants because they don't have to worry about pollinators eating them.
The plants will grow weaker because there are no pollinators to bring them food.
There will eventually be no plants because they cannot reproduce without the pollinators.
The plants would not be affected by pollinators disappearing.
There will eventually be no plants because they cannot reproduce without the pollinators.
Plants rely on pollinators for reproduction. Bees, bats, hummingbirds, and other pollinators will move from flower to flower, and the pollen will get stuck to them. When they land on the next flower, the dust will transfer. Seeds are spread, and new plants form. Without pollinators, there would be significant consequences for the plant's future. Eventually, there will be no more fruit and vegetable plants because of the lack of pollinators.
Example Question #6 : Environmental Changes That Cause Problems
Kathryn planted beautiful tall shrubs in her backyard to create a shady area to sit and read her books. After a few weeks, she notices that her sunflower plant stems are leaning to the left as opposed to standing straight. She sees the leaves just barely reaching the sunlight, and the rest of the plant is engulfed in the shade. A few more weeks pass, and the plants are leaning even more to the left! This time their leaves are almost entirely in the sunshine.
What difference(s) in the environment caused the plant to change?
The direction and amount of sunlight changed.
The direction of sunlight has changed.
The amount of sunlight changed.
Neither the direction nor the amount of sunlight changed.
The direction and amount of sunlight changed.
Kathryn did not realize when she planted the shrubs in her yard that she would not only shade her reading spot, but she would change the environment for her sunflower plants too. The plants were covered in the shade, and they need sunlight to make their food. The plant cannot get up and walk away because they have rooted in the soil, so instead, the stem and leaves lean in the direction of the sunlight. Over time the plant can lean far enough to collect the sunlight it needs.
Kathyrn changed the amount and direction of sunlight in her backyard. The sunflower plants had to lean to collect sunlight because of the shade that the shrubs were casting. The plants changed their behavior and physical placement to adapt to the new surroundings.
All 3rd Grade Science Resources
