Unit 3 Natural sciencee.pdf

Name:

3

UNIT

Test Class:

1 Use the words in the box to complete the text about living things. unicellular organisms interaction

characteristics cells

bacteria

many

multicellular organisms

cells Living things are made up of units called (a)  _______________. This is the smallest living unit. Some living things, such as (b)  _______________________, are made up of only one cell. These are (c)  _______________________. Others are made up of

(d)  _______________________ cells and are called (e)  _______________________. Living things share certain (f)  _______________________ such as nutrition,

(g) _____________________ and reproduction.

2 Order the structures from the simplest to the most complex. organism

1

2

cell

organ

3

tissue

body system

4

5

3 Living things can be classified into five groups called kingdoms. Tick ( ) the boxes to complete the chart about unicellular and multicellular organisms.

Unic Un icel ellu lula larr org organ anis isms ms

Mult Mu ltic icel ellu lula larr org organ anis isms ms





Monera Kingdom Protist Kingdom Fungus Kingdom Plant Kingdom Animal Kingdom

1

           

3

UNIT

4 Identify the kingdoms of living things. a

c

b

Monera Kingdom e

d

5 Read the descriptions and identify the kingdoms. a. These living things things can be flowering flowering or non-flowering. non-flowering. b. These living things feed feed on other living things things that are decomposing.. Yeast belongs to this kingdom. decomposing c. We can only only see these unicellu unicellular lar organisms organisms using a microscope.

6 Complete the sentences about the life processes of animals. plants and animals

shelter

born live

born live

a. Some animal animalss are

eggs

live alone

groups

senses

while other animal animalss are born from

.

b. Animals use their

to interact with their environment.

c. Some animals live in

for protectio protection n while other animals prefer to .

d. Some animals only eat other animals, some only eat plants and there are others that eat both .

2

           

3

UNIT

7 Circle True or False. Copy the sentences that are true and correct the ones that are false. a. Animals Animals do not stop growing.  Animals  Anima ls only only grow until until they become become matu mature. re.

True / False

b. Only plants can make their own food.

True / False

c. Fungi take in nutrients from dead plants and animals.

True / False

d. Plants release carbon dioxide during photosynthesis.

True / False

e. Bacteria can live inside other living things.

True / False

f. All plants are multicellular organisms.

True / False

g. All protists are unicellular organisms.

True / False

8 Living things perform the same life processes: nutrition, interaction, reproduction, respiration, excretion, growth and movement. Explain how a plant carries out these processes. a. Plants make their own food using photosynthesis. b. c. d. e. f. g.

3

           