[Grade 7] EASE 3 Preparation

EASE 3 Preparation

​Reviewing the subtopics and answering past-exam questions

4 subtopics of Microorganisms in the Environment

​[1] Microorganisms

​[2] Food Chains and Webs

​[3] Microorganisms and Decay

​[4] Microorganisms in Food Webs

[1] Microorganisms

​Circle/mark the microorganisms.

Draw

Circle/mark the microorganisms.

Multiple Select

All microorganisms are bad and dangerous for human

• True

• False

Multiple Select

Microorganisms are very tiny and they do not have any purpose or benefit

• True

• False

Multiple Select

Some bacteria are useful/beneficial to living things

• True

• False

Microorganisms under microscope:

​Which organisms?

• Have nucleus

• Have cell wall

• Multicellular (made of many cells)

• Growing in the dark --> do not need sunlight

Open Ended

List two microorganisms that are fungi.

Y ____

M ___

Bread making, which microorganisms?

​Mark/circle the microorganism:

​Bacteria

​Mold

​Yeast

Mushroom

​Virus

Yeast

Yeasts are visible on the surface of fruits

Open Ended

List 2 characteristics of this microorganism

Making yoghurt, which microorganisms?

​Mark/circle the microorganism:

​Bacteria

​Mold

​Yeast

Mushroom

​Virus

Bacteria vs Fungi

​Decomposers

Have cell wall

Have nucleus

Agar Jelly

​Best medium for growing bacteria in laboratory

[2] Food Chains and Webs

Mark the source of energy of the producer

List the food chains.

Mark the herbivores.

Mark the carnivores

Mark the consumers

Mark the predators

Mark the producer.

[3] Microorganisms and Decay

Open Ended

Describe one way in which decay by microorganisms is NOT useful.

Open Ended

Suggest one way in which decay by microorganisms is useful.

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

[4] Microorganisms

in Food Webs

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D