

Food Chains Practice
Presentation
•
Science
•
4th Grade
•
Medium
+2
Standards-aligned
D'lana Metz
Used 5+ times
FREE Resource
3 Slides • 17 Questions
1
Food Chains
You will not need any paper for this assignment.
2
Food Chain
A food chain explain how food energy is transferred from plants to an animal and then to other animals. Food chains always start with green plants making food energy from the sun. They are the only part of a food chain that can transfer the sun’s energy into food during a process called photosynthesis. A plant that can make its own food through photosynthesis is called producer. An apple tree, sunflower, or grapes are producers. The greatest amount of energy in a food web is in the producers.
Next, an animal eats the plant and another animal eats that animal. An organism that eats another organism in order to get its food, like an animal is eating a plant or another animal, are consumers.
An animal that eats the plant is the primaryconsumer. The animal that eats another animal is a secondaryconsumer. Animals with nopredators are at the top of the foodchain. When these predators die, their body is decomposed. Decomposers are made up of fungi, bacteria, worms and insects. Decomposers are living things that get energy by breakingdowndeadanimals and plants and breaking down wastes of other animals.
3
Parts of the Food Chain
All living parts of an ecosystem are interdependent on each other. They depend on one another for survival. Starting with the sun’s energy, organisms pass energy from one organism to another in a food chain or food web. The producer has the greatest amount of energy.
Look down below. In a food chain/web, the arrowpoints to the organism that is doing the eating, therefore showing the flow of energy.
4
Multiple Choice
The shortgrass prairie is an ecosystem found in the Great Plains. Many different populations of animals depend on the prairie ecosystem for survival. A typical community includes animals such as snakes, birds, mice, rodents, and insects.
Which food chain most accurately demonstrates the flow of energy in a shortgrass prairie ecosystem?
grasshopper → bird → rodent → buffalo
hawk → snake → mouse → grasshopper
grasshopper → mouse → snake → hawk
snake → hawk → skunk → mouse
5
Multiple Choice
Observe the food chain above. Which organism’s population would increase if finches were removed from the ecosystem?
Grass
Grasshopper
Snake
Hawk
6
Multiple Choice
The roadrunner is a desert bird that eats fruits and seeds. It also eats insects, spiders, scorpions, and rattlesnakes.
What would likely happen if the roadrunner population disappeared from its ecosystem?
There would be no more fruits or seeds.
There would a decrease in spider populations.
The rattlesnake population would stay the same.
There would be an increase in scorpion populations.
7
Labelling
Look at the food chain below. Label each picture with what it is.
8
Multiple Choice
What is one example of the way that energy flows in the food chain above?
Energy flows from grass to the Sun
Energy flows from hawks to snakes
Energy flows from grasshoppers to finches
Energy flows from snakes to finches
9
Match
Match the following vocabulary.
Photosynthesis
Sun
Producer
Consumer
Decomposer
The process by which plants create their own food.
Where all energy starts.
The green plant that creates in own energy from the sun, air, and water.
The animal that eats the producer.
The organism that breaks doewn dead material.
The process by which plants create their own food.
Where all energy starts.
The green plant that creates in own energy from the sun, air, and water.
The animal that eats the producer.
The organism that breaks doewn dead material.
10
Multiple Choice
The diagram shows a grassland food chain. If the mice are removed from this food chain, which animal population would most likely be affected first?
Plant Seeds
Field Mice
Snakes
Mountain Lions
11
Dropdown
12
Dropdown
13
Multiple Choice
The diagram shows a food chain.
The squirrel gets its energy directly from -
sun
trees
other squirrels
hawk
14
Multiple Choice
In this food chain, where does the lizard get its energy from?
plant
grasshopper
mushrooms
sun
15
Multiple Choice
Label the following.
Decomposer
Consumer
Producer
16
Multiple Choice
What is a part of the food chain that makes its own food and nutrients?
consumer
producer
omnivore
sun
17
Labelling
Label the following.
18
Multiple Choice
An animal that eats only plants is called a -
carnivore
omnivore
insectivore
herbivore
19
Multiple Choice
Label the image.
Producers
Consumer
Decomposer
20
Multiple Choice
An animal that eats both plants and animals is called a -
omnivore
herbivore
carnivore
producer
Food Chains
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