3rd Grade Science
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Sasha planted huge shrubs and trees in her backyard to give her privacy from her neighbors. She created lots of shade to sit in on hot summer days. What she didn't realize was that all of the darkness was hurting her smaller plants. They are supposed to be green and stand straight, but now they are wilting and brown.
What traits have changed with the smaller plants?
Root size and flowers
Plant shape and color
Leaf age and hobbies
Stem color and leaf shape
Explanation
Plants inherit traits from their parents, including their stem color, shape, leaf texture, flower color, and stem shape. Due to the shade from the tall shrubs and trees, the plants are no longer straight, green plants like their parents but instead brown and wilting. The environmental impact on the plant's traits has caused it to change, and its appearance has been altered.
Use evidence from the data table to explain the environmental impact on the traits of the wheat plant.
Using less water causes the plants to be taller
Using more water causes the plants to be taller
Using more water causes the plants to be shorter
The amount of water does not affect a plant's height
Explanation
Environmental factors can have an impact on the traits of plants and animals. In the case of this farmer's wheat plants, the more water the field received, the taller the plant is. The data table provides evidence to support this claim and the impact that water has on the traits of a plant.
How would a dog's weight be impacted if all they ate lots of treats and never exercised?
They may be overweight.
They may be underweight.
They may grow very tall.
They may be very short.
Explanation
Environmental factors influence traits in plants and animals. These traits include things like weight, height, size, and color. If a dog does not get proper nutrition and exercise, their weight will be negatively impacted. The dog is likely to be overweight if the environmental factors are not changed. Without the right vitamins, nutrients, and exercise, they may not reach their inherited potential due to environmental influences.
Panda: This bear is huge and can weigh up to 300 pounds. It has very thick black and white fur that keeps it warm when it is cold or chilly outside. It primarily eats bamboo but will also eat rodents, grass, and meat if needed. They drink their water from streams and rivers. They take shelter in hollow trees and the holes between rocks.
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.
Based on the information provided, how well would the panda survive in this habitat, and why?
The panda would survive very well because it is adapted and has the traits to live in the Sahara Desert.
The panda would not survive because it is not adapted and does not have the traits to live in the Sahara Desert.
The panda would survive less well in the desert than other places because it is not adapted and does not have the traits to live in the Sahara.
There is not enough information to decide if the panda could survive in the desert.
Explanation
In this habitat, the panda would not survive. The panda has thick fur to protect it against cold weather, and the desert is sweltering, so it would overheat quickly. It's black and white coat would offer no camouflage in the sand, and there is no water source for the panda to drink from. The food sources that pandas rely on are not available in the Sahara. The panda would not survive in this habitat because it is not adapted to live there.
Organisms and their habitats depend on each other for survival. Some survive better than others, depending on the conditions.
True
False
Explanation
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.
Organisms and their habitats depend on each other for survival. What would happen if one member of the habitat was removed?
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.
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.
Explanation
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.
Samantha is planning a trip to the zoo and needs to decide which season would be the best for being outdoors.
Using the information provided which season should she choose and why?
Spring is the best season for visiting the zoo because the temperatures are comfortable and there is very little rain.
Winter is the best season to visit the zoo because it is frigid and it is the season with the least amount of rain.
Fall is the best season to visit because the temperatures are cold and there there is a lot of rain.
Summer is the best season to visit the zoo because it is the hottest month and there is the most rain.
Explanation
Using data tables are a great way to organize information and compare numbers or facts. Each season has its own positive and negative attributes that are suitable for different activities. For a family trip to the zoo, the weather would need to be comfortable, and there would need to be less chance of rain. The season that would be best for a zoo visit would be the spring because there are moderate temperatures and less of a chance of rain than in the fall or summer. Winter would likely be too cold for an outdoor trip, and summer would be much too warm.
This graph describes the average snowfall in inches that occurs in Madison, Wisconson. There are only eight months listed on the x-axis of the graph. Which season is not represented?
Spring
Summer
Fall
Winter
Explanation
This graph has left out the months of June, July, August, and September. These months fall during the summer. Summer is the warmest season and the least likely to have any snowfall. There is no reason to graph the data if the total inches were zero.
Severe weather can have negative impacts on the people and communities it passes through. Anaya's class is trying to come up with a solution to reduce that impact from hurricanes. They decide that replacing regular windows with windows that are more resistant to strong-winds and impact-proof would be an excellent way to minimize damage and injuries during the storm. Each student has to give their thoughts about the solution.
Which student's claim below is a reasonable explanation of why strong-wind resistant and impact-proof windows would help?
There is no way to tell if this is a good idea or not.
Robby - "I agree with the solution to replace the windows. I think that hurricanes rain a lot, so new windows would help keep the house dry."
Anaya - "I agree with replacing windows to reduce danger and injuries. Hurricanes have high winds, and strengthening the windows will protect families from debris and damage."
Sadie - "I agree with replacing windows to reduce danger and injuries. People are scared of hurricanes, so new windows will give them a better view of the storm."
Explanation
Hurricanes are intense tropical storms that bring high winds and rain. Many times there is debris that flies through the air or tree limbs fall. Windows that are more resistant to strong-winds and impact-proof would protect people from debris that is in the air and winds, which can reach speeds of 160 mph or higher. If windows stay intact, there will be less damage to the interior of homes and less risk of injury to the residents.
Which answer choice is the best description of the climate in a tropical zone based on the graphs provided?
The climate in a tropical zone does not vary as much as other areas of the world. It is a consistent temperature and is warm all year. Madagascar experiences summer from December to March, and this is when it is not only the hottest but the wettest as well. Rainfall increases during the summer months and decreases during wintertime.
The climate in a tropical zone varies more than in other areas of the world. It is not a consistent temperature and different all year. Madagascar experiences summer from December to March, and this is when it is not only the hottest but the wettest as well. Rainfall increases during the summer months and decreases during wintertime.
The climate in a tropical zone does not vary as much as other areas of the world. It is a consistent temperature and is cold all year. Madagascar experiences summer from December to March, and this is when it is not only the coldest but the dryest as well. Rainfall decreases during the summer months and increases during the wintertime.
The climate in a tropical zone does not vary as much as other areas of the world. It is not a consistent temperature and is the temperature changes all year. Madagascar experiences winter from December to March, and this is when it is not only the coldest but the wettest as well. Rainfall increases during the summer months and decreases during wintertime.
Explanation
Madagascar is in a tropical climate. It is warm all year and rainy during the hottest months, which is summer. Summer in Madagascar falls between December and March, and temperatures hover around 88oF with up to 18 inches of rain in one month. The temperatures decrease to the lower 80s in the winter months, and the rainfall drops to less than an inch.