Download Science Home Learning Task Year 7 Body systems

Science Home Learning Task
Year 7
Body systems
Name
Tutor Group
Teacher
Given out:
Monday 8 February
Parent/Carer Comment
Staff Comment
Target
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
D
C
B
Mitochondria
Cell membrane
Nucleus
Cytoplasm
A ________________________________________
B ________________________________________
C ________________________________________
D ________________________________________
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
Controls what enters
and leaves the cell
Cell wall
For storage.
Contains cell sap
Cytoplasm
Vacuole
Cell membrane
Mitochondria
Chloroplasts
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?
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b) Give an example of a tissue in the human body.
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c) What is an organ?
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d) Give an example of one organ in the human body and one organ in a plant.
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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
Rib
Alveolus
Lung
Nose
Mouth
Ribcage
Diaphragm
Heart
Bronchiole
Bronchus Muscle
2. Using the diagram you have labelled, describe how air enters your body and how
the oxygen taken in enters your blood.
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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.
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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
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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.
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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?
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2. Are there more or less bones in the skeleton of a child? Can you explain the
difference?
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3. What are bones made of? Use the internet to find out the answer.
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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:__________________________________________________________________
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Protection:__________________________________________________________________
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Movement:__________________________________________________________________
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Make blood cells:__________________________________________________________________
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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.
1.
Gehin
2.
Lalb and tockes
3.
Dexif
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:__________________________________________________________________
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Joint 2:__________________________________________________________________
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Joint 3:__________________________________________________________________
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3. The diagram below shows the main parts of a hip joint.
a) What is the role of the cartilage in the joint?
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b) What is the role of the ligaments in the joint?
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4. To help the body to move we also need muscles. Muscles have tendons attached
to them. What is the job of a tendon?
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5. Muscles that help to move a bone are called antagonistic muscles. What is meant
by antagonistic muscles?
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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.
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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:
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I believe that my effort and attitude to learning for this booklet is a:
1
2
3
4
I know this because:
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