Science Worksheet

• Science Worksheet
  
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Jubail International School Worksheet

Science – Grade 4

Name:…………………………………..

Term-1 Date:………………

Choose the best answer and circle it. 1. All of the living and nonliving things in an area and their interactions make up an a.

Ecosystem

b. food chain

c. food web

d. population

x(Following one is the example of an ecosystem a. Polar ecosystems

b. wetlands ecosystems

c. tropical rain forests

d. ocean ecosystem)x

2. Identify the correct definition of community a. all organisms live in same place b. all the organisms live in different place c. is a group made up of the same type of individuals in the same ecosystem d. is a group made up of same type of individual in the different area 3. It is a group made up of the same type of individuals in the same ecosystem. a. Ecosystem

b. Community

c. Population

d. Niche

4. The way an organism interacts with the habitat and gets food and shelter are part of its a. behavior

b. activity

c. role

d. niche

5. Organisms find food and shelter in their a. niche

b. habitat

c. population

d. home

6. The organisms compete for resources when their habitats and niches 1

a. supersede

b. fight

c. compete

d. overlap

7. Which of the following are producers a. Giraffe, strawberry plant, and lion b. Strawberry plant, gray mold and fungi c. Strawberry plant, grass, water lily d. All of them 8. Which of the following is consumer a. herbivores

b. omnivores

c. carnivores

d. scavenger

e. all

9. An animal that hunts other animal for food is a. prey

b. predator

c. herbivore

d. none

10. Deer, elk, and moose are all ____________ for wolves. a. prey

b. predator

c. scavenger

d. decomposer

Fill in the blanks with suitable words. 1. A consumer that eats only plants is a ______herbivore________________. 2. A consumer that eats only other animals is a ________carnivore________________. 3. A consumer that eats both plants and animals is an omnivore. 4. Raccoons are the examples of ____omnivores______. 5. Vultures are ___scavengers_______. 6. Frog is prey

and

predator. 2

7. A _______food web________ shows the relationships among different food chains in an ecosystem. 8. A lobster eating clams, small fish, crabs, and sea stars is an example of ___carnivore____. 9. Consumers that breaks down the remains of plants and animals are ____decomposers_____. 10. Decomposers help __break___ materials in ecosystems. Complete the table by ticking in the right column. Organisms

Producers

Consumers

Decomposers

Herbivores





grasshoppers





antelopes





frogs



elephants grasses

trees

Omnivores

Scavengers

PREY

Predator











gray molds



deer





rabbits





fungi



insects





 

bacteria



mushrooms







crocodile tomatoes

Carnivores





 

vultures sharks





hawk





3

Make two food chains one showing 4 organisms and the other showing 5 organisms .

1.  Grass – grasshopper – frog – snake – eagle 2.  Grass – prairie dogs – coyotes 3.  Grass – rabbit – snake – owl – hawk 4.  Grass – snail – bird – fox

4