Parent/Carer Comment

Staff Comment

Target

Science Home Learning Task

Year 7

Body systems

Name

Tutor Group

Teacher

Given out: Monday 8 February

Hand in: Monday 22 February

Investigating Science

Welcome to your Science homework booklet. This booklet is designed to give you some

extra practise on the key areas in the “structure and function of body systems” section of

the course.

You need to carry out tasks 1, 2, 3 and 4.

Then choose either the bronze, silver or gold task – go on, challenge yourself!

Don’t forget to fill in the last page and ask a parent/carer to sign the box on the front.

TASK 1- Levels of organisation

Multicellular organisms are made up of many cells which make the tissues and organs

needed for survival.

1a) Label the animal cell using the labels in the box below.

A ________________________________________

B ________________________________________

C ________________________________________

D ________________________________________

Mitochondria Cell membrane Nucleus Cytoplasm

A

B

D

C

1b) Label the plant cell using the labels in the box below. Write your answers in the

boxes provided.

Mitochondria Cell membrane Nucleus Cytoplasm

Chloroplast Vacuole Cell wall

TASK 1 - continued

2. Match the cell strucure to its function by drawing lines between them.

Nucleus

Cell wall

Cytoplasm

Vacuole

Cell membrane

Mitochondria

Chloroplasts

Controls what enters

and leaves the cell

For storage.

Contains cell sap

Controls the cell and

contains genetic

material

Respiration happens

here – energy is

made

Chemical reactions

happen here

Strengthens the cell

and provides support

Where energy from

the Sun is trapped

for photosynthesis

TASK 1 – continued

3. Multicellular organisms have five layers of organisation as shown below.

Answer the following questions about the five layers.

a) What is a tissue?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

b) Give an example of a tissue in the human body.

_________________________________________________________________

c) What is an organ?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

d) Give an example of one organ in the human body and one organ in a plant.

__________________________________________________________________

__________________________________________________________________

TASK 2 – Gas exchange and breathing

The diagram below shows the respiratory system which is used to help us breathe in

and out.

1. Label the diagram below using the words in the box.

Trachea Alveolus Nose Ribcage Heart Bronchiole

Rib Lung Mouth Diaphragm Bronchus Muscle

2. Using the diagram you have labelled, describe how air enters your body and how

the oxygen taken in enters your blood.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

3. The amount of carbon dioxide in the air we breathe in is 0.04%, but in the air we

breathe out it is 4%. Explain the reason for the difference in carbon dioxide levels.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

TASK 2 - continued

4. The diagram below shows a model that can be used to show what happens when

we breathe in and out. Explain what part of the body each model part represents.

Explain what happens to the balloons when the rubber sheet is pulled down and

pushed up. Use the keywords in the box below to help you.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

Inflate Ribcage Deflate

Lungs Diaphragm

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

5. Is the bell jar model a good model of breathing? Write down one way in which

the model is a good model and one way that it is a bad model for breathing.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

TASK 3 – The skeleton

Our skeleton is made of many bones joined together to form a framework. Answer the

questions about our skeleton below.

1. How many bones make up an adult skeleton?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

2. Are there more or less bones in the skeleton of a child? Can you explain the

difference?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

3. What are bones made of? Use the internet to find out the answer.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

4. We need our skeleton for four main functions:- support, protection, movement

and to make blood cells. Describe how the skeleton carries out each of these

functions.

Support:-

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

Protection:-

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

Movement:-

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

Make blood cells:-

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

TASK 4 – Joints and muscles

We need muscles and joints to be able to move our body. Answer the questions below

about muscles and joints.

1. There are three different types of joints in the body. Re-arrange the letters below

to find out what they are.

2. Give an example of where you would find each of these joints in the body and the

direction that each joint moves.

Joint 1:-

__________________________________________________________________

__________________________________________________________________

Joint 2:-

__________________________________________________________________

__________________________________________________________________

Joint 3:-

__________________________________________________________________

__________________________________________________________________

Gehin

Dexif

Lalb and tockes 2.

1.

3.

3. The diagram below shows the main parts of a hip joint.

a) What is the role of the cartilage in the joint?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

b) What is the role of the ligaments in the joint?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

4. To help the body to move we also need muscles. Muscles have tendons attached

to them. What is the job of a tendon?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

5. Muscles that help to move a bone are called antagonistic muscles. What is meant

by antagonistic muscles?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

6. The diagram below shows the muscles in the arm. Label the diagram to show

which muscle is which. Use the labels in the box below.

Bicep muscle

Tricep muscle

7. Describe what happens to the bicep and tricep muscles to help the arm to bend

and straighten. Use the words contract and relax in your description.

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

TASK 5 – Bronze, silver or gold? Complete one of the tasks below.

Bronze task

Humans are made of several organ systems working together. Find out about one of the

organ systems we have – what does the organ system do and what organs does it

contain? Use the last page to show your findings.

Silver task

Specialised cells. Plants and animals are made of specialised cells. Find out about four

specialised cells – two found in plants and two found in animals. Write down what each

cell does and how it is designed for its job. You can add diagrams too. Use the last page

to show your research.

Gold task

Seeing it. Doctors use different methods to be able to see the bones, muscles and organs

in our body. Carry out research on the methods used, how they work and why we need

different methods to see each part. You can include some diagrams too. Use the last

page to show what you have found out.

Blank page for bronze, silver or gold task

Extra space for the bronze, silver and gold tasks

Self Evaluation of my Homework

I am a R____________________ learner. I know this because:

______________________________________________________

______________________________________________________

______________________________________________________

I believe that my effort and attitude to learning for this booklet is a:

1 2 3 4

I know this because:

______________________________________________________

______________________________________________________

______________________________________________________