WorksheetsEvaluate: 4th Grade Life Part 4
Total questions: 12
Worksheet time: 12mins
Mr. Poloski asks his science class to show how energy flows through a community of plants and animals. He makes three signs and asks three students to each choose a sign. The table shows what sign each student picks. Mr. Poloski asks the students to line up to model how energy flows through a community. Which shows the correct order as to how the students should line up?
The Sun provides the energy to be used by the living things in the forest food chain shown. Which of the following describes a transfer of energy from a producer to a consumer?
from grass to grasshopper
from owl to mouse
from grass to sun
from mouse to owl
For breakfast, Madison eats eggs and bacon. A chipmunk eats seeds for breakfast. How are Madison and the chipmunk alike?
They are both herbivores.
They are both carnivores.
They are both getting energy.
They are both producers
Carla wants to show how living things get their energy. Which sequence is correct?
In an ocean environment, there are producers that directly use the sun’s energy. Phytoplankton is an example of a producer found in an ocean ecosystem. The food chain shows phytoplankton, krill, and whale. Which animal in the food chain does the phytoplankton pass its energy on to?
to its children
to a consumer
to the sun
to a producer
Mercury is a poison that can affect a person’s health. Mercury gets into the environment in several ways. One way is by dumping industrial wastes into rivers and lakes. Once it is in the water, mercury can enter a food chain. The mercury builds up as it works its way through a food chain. The organisms at the end of the food chain will have the highest level of mercury. The picture below shows mercury being dumped into a lake. Which organism in the picture will have the highest level of mercury?
large fish
small fish
all the plants
the person fishing
The apple snail is an important part of food chains found in Florida’s marshes. The apple snail is also part of many home aquariums. One reason people like to place them in fish tanks is that the apple snail is the largest freshwater snail on Earth. However, people who have snails in their fish tanks should never release them into local ponds or rivers. What is the reason for this?
Apple snails will not survive in the ponds and rivers.
Apple snails will threaten life in the ponds and rivers.
Apple snails will not grow as large in ponds and rivers.
Apple snails will no longer be part of food chains in Florida marshes.
The coral vine is a plant that grows in many parts of Florida. It is not native to Florida, but was introduced from Mexico. Its beautiful flowers attract butterflies. The coral vine can live where there is air pollution and poor soil. The coral vine also grows very rapidly and crowds out other plants that eventually die. Despite its beauty, scientists are concerned about how the coral vine plant may affect Florida. Which of the following makes the coral vine plant a possible threat to Florida’s environment?
It grows in poor soil.
It grows very quickly.
It tolerates air pollution.
It has flowers that attract butterflies.
Pam and her family enjoy hiking in a forest a few hours from their home. The picture shows what they see when they arrive at the forest one day. What is one way that cutting down trees in the forest can be helpful?
The amount of pollution in the area will decrease.
The land can be used for farmland or to build houses.
There will be a greater variety of animals in the forest.
The smaller forest will provide better homes for animals.
Each summer, Rabin and his family take a vacation at an ocean cottage. This year, they learn that they cannot swim in the ocean because of an oil spill. What effect will the oil spill most likely have on the environment?
The air near the oil spill will develop smog.
The temperature of the water will increase.
The number of cloudy days at the shore will increase.
Fish and water birds will become coated with oil and die.
Cities have water purification programs to keep the drinking water free from bacteria and other pollutants. How does this help people living in these cities?
It helps people by purifying the water to make it safer to use.
It helps people by cleaning the air they breathe.
It produces large amounts of water
It eliminates filters from factories.
In some parts of the Florida Everglades, sawgrass can grow thick enough to block the flow of water. Alligators make nests out of sawgrass and also make travel lanes through the grass. This helps the water flow easily It also keeps the sawgrass from being completely underwater, which can damage the sawgrass. What relationship is demonstrated by the alligators and sawgrass in the Everglades?
Alligators destroy sawgrass.
Alligators feed on sawgrass.
Sawgrass helps the alligators travel.
Sawgrass and alligators depend on each other.
