حل أوراق عمل Role of decomposers في العلوم باللغة الإنجليزية للصف الخامس

Science، grade 5

Review lesson 3 : Role of decomposers

Question 1 : write term of each concept

1.decompostion the breaking down or decaying of plant and animal material

2.decomposers organisms that break down plant and animal matter

3.fungi

a type of decomposers appears in many forms , like plants, but cannot

make their own food.

4.bacteria

type of organism made up of a single sell

Question 1 : choose the correct answer

1--What is the name of the process where the remains of living things rot, decay or break down?

A. Disintegration B. Dissolve C. Decomposition D. Recycling

3-decomposer in the soil or in plant roots convert nitrogen gas into solid nitrogen molecules in the soil.

A. fungi B. mold C. bacteria

2-The job of decomposers is to break down dead plants and animals into useful substances. This job is their ______.

A) adaptation B) skill C) niche D) habitat

4-A living organism that puts materials from dead plants and animals back to the soil is called a ____________?

A. carnivore B. decomposer C. herbivore D. omnivore

5-Which best describes how decomposers help 6- 13-Which organisms are examples of

support life in an ecosystem?

decomposers?

A. Decomposers add nutrients to the soil. A. rabbits

B. Decomposers provide a habitat in the

B. lions، ecosystem، C. fungi

C. Decomposers add producers to the

D. trees

D. Decomposers provide energy for

consumers

7-Are fungi and bacteria same?

8-Choose the decomposer

A. Yes B. No

A. mushroom B. horse C. tree D. grass

20-What is the role of a decomposer in an ecosystem?

A. capture the energy of sunlight for plants to make food

B. produce oxygen for plants and animals C. break down dead organisms and their

wastes D. transport nutrients and other materials

among organisms

10-which answer is from fungi forms

A. Mold B. Yeast C. Mushrooms D. Decomposers

11-Which is an example of a decomposer? A. a hawk B. a mouse C. a flower D. a mushroom

12-How do decomposers help plants?

A. They help with photosynthesis B. They enrich the soil C. They can provide oxygen D. They hold water

15-Choose the decomposer

A. grass B. elephant C. bacteria D. bird 17-A decomposer is also a producer.

A. True B. False

16-which is considered a decomposer? A. fungi B. mold C. bacteria D. all of the above

18-Breaks down and feeds on the remains of other organisms

A. decomposer B. consumer C. producer

21-When a decomposer dies, its once-living material becomes waste. These wastes are then

A. converted into energy that can be used. B. transformed into bacteria that fungi can

eat. C. further decomposed by producers and

consumers. D. released into the air, soil, and water of

an ecosystem

22-While hiking through a nearby forest, you find some fungi growing on a tree stump.

What role does the fungi play in this forest ecosystem?

A. It breaks down dead tree matter. B. It eats living

organisms and their wastes. C. It uses sunlight to produce energy for the tree. D. It produces oxygen that other forest organisms use to survive.

23- an organism that is too small to be seen with out a microscope?

A. Fungus B. Mold C. Bacteria D. Vulture

24-22-What are groups of decomposers that are living things but are neither plant nor animal?

A. Fungi B. Bacteria C. Lilly Pads D. Dirt Worms

1- What do the bacteria on the roots of plants do to the nitrogen? Change nitrogen gas into other forms in the soil .then plants use this nutrient .

2- What happens when you put yeast on a banana? Explain ?

Change color of banana to black faster than banana without yeast Because yeast are decompose of banana . What types of decomposer on this fallen log ?

Fungi , moss and bacteria