WorksheetCloud.com - Question Sheet 1

Subject: Grade 6 Natural SciencesTopic: Ecosystems and food websTotal: 35 Marks

Name:

Date:

This text refers to question: 1, 2Desert ecosystems

Brown hyena, gemsbuck (gemsbok), ground squirrels, striped mice and weaver birds all depend on thetsamma melon plant. The gemsbuck dig up the long, fat roots for water. The rodents eat the seeds. Thehyenas help to spread the seed in their dung. The seeds are nicely hidden and protected from the rodents.It all fits well together.

Question 1: Multiple Choice 4 marksStudy the text about the tsamma melon plant in the desert ecosystem.

It mentions how the animals depend on this plant as an essential source of water, but how is the survivalof this plant dependant on the brown hyena?

A The brown hyena digs up the long, fat roots for water.

B The brown hyena protects the seeds from the rodents.

C The brown hyena eats the seeds.

D The brown hyena spreads the seeds in its dung.

Question 2: True/False 2 marksTsamma melons are an essential plant in the desert ecosystem.

TRUE FALSE

Page 1 of 5 Get more content at www.worksheetcloud.comCopyright Learning Lab Apps (Pty) Ltd. All rights reserved.

This image refers to question: 3

Question 3: Please Fill In The Blanks 4 marksStudy the diagram and the interlinked food chains carefully.

The prawn, fly and slug are classified as (1) and the only fish considered a carnivore is the (2) .

Possible Answers: omnivores | herbivores | carp | trout

1 2

Question 4: Multiple Choice 4 marksWhich food chain for the Kalahari Desert is incorrect?

A Tsamma melon → striped mouse → snake → roadrunner

B Tsamma melon → gemsbuck → snake → roadrunner

C Tsamma melon → gemsbuck → leopard

D Tsamma melon → brown hyena → decomposers

Page 2 of 5 Get more content at www.worksheetcloud.comCopyright Learning Lab Apps (Pty) Ltd. All rights reserved.

This image refers to question: 5

Question 5: Multiple Choice 4 marksStudy the river ecosystem carefully.

Identify which group of organisms is not shown in the river ecosystem.

A Producers

B Consumers

C Decomposers

D Water reeds

Page 3 of 5 Get more content at www.worksheetcloud.comCopyright Learning Lab Apps (Pty) Ltd. All rights reserved.

This image refers to question: 6

Question 6: Please Fill In The Blanks 4 marksStudy the table carefully and identify the type of ecosystem (A) and a possible threat (B) to thisecosystem.

This is a (1) ecosystem and (2) is a threat to the survival of this ecosystem.

Possible Answers: pond | grassland | forest | poaching the animals, making fires and clearing land forhousing and farming | chopping down trees for timber and clearing ground for roads and farming

1 2

Question 7: True/False 2 marksDecomposers are micro-organisms that break down dead plant and animal matter.

TRUE FALSE

Question 8: Text Input 3 marksAn animal that eats plants and animals, such as a pig, is called a/n … .

Type only one word for your answer. You must spell the word correctly.

Page 4 of 5 Get more content at www.worksheetcloud.comCopyright Learning Lab Apps (Pty) Ltd. All rights reserved.

This image refers to question: 9

Question 9: Multiple Choice 4 marksStudy the pictures carefully and arrange the numbers accordingly, in order to create a food chain.

Choose the most likely food chain.

A 2 – 3 – 1 – 5 – 4

B 3 – 2 – 1 – 4 – 5

C 2 – 1 – 3 – 4 – 5

D 4 – 5 – 1 – 3 – 2

Question 10: Please Fill In The Blanks 4 marksDifferent animals find their homes in different ecosystems. The (1) is home to animals such as crabs,anemones and limpets.

Animals such as zebras and antelopes live in (2) .

Possible Answers: pond | rocky shore | grasslands | wetlands | deserts

1 2

Total: 35 Marks

Page 5 of 5 Get more content at www.worksheetcloud.comCopyright Learning Lab Apps (Pty) Ltd. All rights reserved.