3rd Grade Science : Life Science
Study concepts, example questions & explanations for 3rd Grade Science
All 3rd Grade Science Resources
Example Questions
Example Question #102 : 3rd Grade Science
Grasslands - The grasslands in the Northern hemisphere are vast, open terrains with flowers and grass. There is enough rain to support small amounts of trees and lots of grass. The soil is thin and dry, and there are often wildfires. The temperatures range from very cold (in the negatives) to comfortable (in the mid-70's).
Which animal would survive well living in a grassland habitat?
A coyote
A panda
A parrot
A polar bear
A coyote
A coyote would survive well in a grasslands area. A coyote would be able to adapt to the type of prey that lives in the area, the weather conditions, and would be able to hunt in the tall grass and trees. A polar bear would not be suited for grasslands because of its thick layer of fat and white fur, it would be too warm for polar bears, and there is no food source for them. Parrots live in tropical climates and high in trees, which grasslands do not have. Panda bears survive by eating bamboo, and there is no bamboo in the grasslands habitats.
Example Question #103 : 3rd Grade Science
Alligators - Alligators are freshwater reptiles that need warm, wet environments to live. They can live in areas with short periods of cold but cannot stand long, harsh winters. They can eat a wide variety of prey (fish, turtles, small/medium mammals, etc.) and can move from water source to water source. They can live for short periods in saltwater but need freshwater long term.
Which type of habitat would the alligator survive well in, and why?
An alligator would survive well in a swamp because it has fresh water and is very wet.
An alligator would survive well in a desert because it is warm and does not have periods of cold.
An alligator would survive well in a grassland habitat because there are few trees.
An alligator would survive well in a tundra because there is a lot of freezing water to hunt in.
An alligator would survive well in a swamp because it has fresh water and is very wet.
An alligator needs warmer weather and can only survive short periods of cold. It also needs access to freshwater and prefers to be in the water for a majority of its time. Due to these specific requirements, it would be best suited to survive well in a swamp. A swamp is very wet and has access to fresh water year-round. Many wetlands are located in warm climates and would provide the alligator with shelter and plenty of hunting opportunities.
Example Question #1 : Effect Of Habitat On Organism Survival
Barrel Cactus - The barrel cactus is large and shaped like a barrel with spines and small flowers. The plant can reach up to seven feet tall. It likes to be in the full sun and only needs to be watered occasionally. It holds water in its thick base so it can go long periods without needing rain. It has thorns to keep predators from making holes and drinking the water it has stored.
Which habitat would allow a barrel cactus to survive well, and is it best adapted for?
Desert
Swamp
Rainforest
Tundra
Desert
A barrel cactus would do best in a desert environment. It has adapted to go long periods without water and can store the water it collects within its stem. It would not do well in a rainforest or swamp because they are too wet, and plants can get too much water. A tundra is icy and frozen and does not support plant life year-round.
Example Question #2 : Effect Of Habitat On Organism Survival
Which organisms listed would survive well in a desert environment?
Camel, snake, bear, and seal
Lizard, panda, scorpion, and monkey
Barrel cactus, hawk, panda, and parrot
Saguaro cactus, camel, scorpion, and lizard
Saguaro cactus, camel, scorpion, and lizard
The 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. Organisms that live in this type of habitat and survive well must be adapted to these conditions. A saguaro cactus, camel, scorpion, and lizard are all organisms that have variations in their behaviors and physical traits that allow them to survive in such a harsh environment.
Example Question #111 : 3rd Grade Science
Natalie, Mike, and Melissa are arguing about why some organisms don’t survive as well as others in a habitat. They are thinking about a habitat like a rainforest as an example.
Which answer choice contains the best argument of why some animals wouldn’t survive as well as others in a rainforest?
Natalie - "I believe some animals will not survive as well in a rainforest because they do not have the right traits for this environment."
None of the arguments are reasonable.
Melissa - "I don't agree with either of you. I think that all animals could survive well in a rainforest regardless of where they came from."
Mike - "I believe some animals will not survive as well in a rainforest because they are too scared to leave their homes and go somewhere new."
Natalie - "I believe some animals will not survive as well in a rainforest because they do not have the right traits for this environment."
The best argument for why some organisms don't survive as well as others in a habitat is Natalie's. The reasoning she gave was clear and correct. If animals don't have the right traits for that particular environment, they will not survive as well. If something changes in their habitat and they don't adapt quickly, they may not survive as well as another plant or animal.
Example Question #112 : 3rd Grade Science
Organisms and their habitats depend on each other for survival. What would happen if one member of the habitat was removed?
The entire habitat will collapse, and all of the organisms will die if one member is removed.
There is no way to predict what will happen if a member is removed from a habitat.
It is possible that other organisms would not survive as well because they needed that one member to be present.
The other organisms will be fine without the missing member. The habitat will not have problems if a member is removed.
It is possible that other organisms would not survive as well because they needed that one member to be present.
Within each habitat, there is a balance that allows its members to thrive and survive. If one member is removed, it throws off that balance and affects the food chain and other organism's survival chances. Other organisms may not survive as well if one member is removed. If bamboo is removed from a forest where panda lives, then the panda is at risk for starvation because bamboo is their primary food source. One simple change can cause a ripple effect with other organisms.
Example Question #13 : Effect Of Habitat On Organism Survival
There is not enough information to decide how well a cactus will survive.
The barrel cactus will survive very well in the grasslands when compared to the desert because the grasslands have more of the features a cactus needs than the desert.
The barrel cactus will not survive in the grasslands when compared to the desert because the habitat has none of the features a cactus needs.
The barrel cactus will survive less well in the grasslands when compared to the desert because the habitat has many of the features a cactus needs but is not ideal.
The barrel cactus will survive less well in the grasslands when compared to the desert because the habitat has many of the features a cactus needs but is not ideal.
The grasslands are not the barrel cactus' natural habitat, so it does not have all of the features or characteristics that would make an ideal habitat. It does have plenty of sun, occasional rain, and open areas to grow, which would work well for a cactus. The cactus may not grow as well as it would in the desert and may need to adapt to the new environment to survive.
Example Question #3 : Argue That In A Habitat Some Organisms Survive Less Well
Alligators are freshwater reptiles that need warm, wet environments to live. They can live in areas with short periods of cold but cannot stand long, harsh winters. They can eat a wide variety of prey (fish, turtles, small/medium mammals, etc.) and can move from water source to water source. They are able to live for short periods in saltwater but need freshwater long term.
Which habitat would an alligator be able to live in, but less well than its natural environment?
A desert with lots of sand and cactus
A tropical rainforest with large lakes and ponds
A beachy area that leads to the ocean
A grassland with rolling plains of flowers and plants
A tropical rainforest with large lakes and ponds
An alligator would be able to survive in a tropical rainforest with large lakes and ponds better than any of the other choices. It may not survive as well in this habitat when you compare it to the swampy areas they thrive in, but it would have all of its basic needs met.
Example Question #1 : Argue That In A Habitat Some Organisms Survive Less Well
Many birds of prey like the osprey live in areas with lots of open bodies of water for hunting. They have terrific eyesight and can spot a fish from many feet in the air and dive down to scoop them out of the water with their sharp talons and strong feet.
Which habitat would an osprey be able to survive in, but less well when compared to its natural habitat?
The grasslands
A swamp
A tundra
The desert
A swamp
The osprey would be able to survive in a swamp but maybe not as well as in its natural habitat. The wetland has other predators that hunt similar food sources and make nests where the ospreys would so it would have to compete for these basic needs to be fulfilled. Ospreys also have large open bodies of water for hunting, and many swamps have thick canopies from the trees. An osprey can survive in a swamp, but it would not do as well as native birds.
Example Question #1 : Argue That In A Habitat Some Organisms Survive Less Well
Organisms and their habitats depend on each other for survival. Some survive better than others, depending on the conditions.
True
False
True
Within each habitat, there is a balance that allows its members to thrive and survive. Organisms depend on one another for survival. If there were no prey for predators in a habitat, they would die out, be forced to relocate, or have to adapt to the new changes. Some organisms survive better in habitats than others, and it is dependent on their ability to adapt to their changing surroundings.
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