IGCSE STAGE 7 SCIENCE ASSIGNMENT 1
Week 1-6 (SECTION 1: 1.1 - 1.6)
TIME: 80 minutes
TOTAL: 65
NAME AND SURNAME:
Answer all the questions in the spaces provided on the question paper.
1. a) Label the parts of this animal cell
(4)
b) What is the purpose of the part labelled A?
(1)
c) What else would you find in a typical plant cell?
(1)
2. Many cells can reproduce themselves. An experiment was set up to find out how cell
numbers changed over 4 hours. The graph shows the results.
IGCSE STAGE 7 SCIENCE
Assignment 1
a) Make a table in this space and record the data from the graph.
b) Identify the pattern revealed by the data.
(6)
(1)
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IGCSE STAGE 7 SCIENCE
Assignment 1
c) Which result seems to be anomalous as it doesn’t fit the pattern?
(1)
d) Predict the number of cells after 6 hours.
(1)
3.
a) What kind of cell is shown in the diagram above?
(1)
b) What is an alternative name for this kind of cell?
(1)
c) What passes along the length of the cell?
(1)
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IGCSE STAGE 7 SCIENCE
Assignment 1
4. The diagram below shows cilieated cells.
a) Where are these cells found?
(1)
b) What are the structures on the top surface of the cells?
(1)
c) What do these structures do?
(1)
5. a) In the space below, draw a red blood cell.
(3)
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IGCSE STAGE 7 SCIENCE
Assignment 1
b) Describe the red blood cell’s shape.
(2)
c) What disappears from inside the cell when it is fully grown?
(1)
d) What is the name of the substance that combines with oxygen when the cell
passes through the lungs?
6. a) In the box, draw the arrangement of particles in a solid.
b) Write a description of the particle arrangement in the solid.
7. a) In the box, draw the arrangement of particles in a liquid.
b) Write a description of the particle arrangement in the liquid.
(1)
(2)
(2)
(2)
(2)
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IGCSE STAGE 7 SCIENCE
Assignment 1
8. a) In the box, draw the arrangement of particles in a gas.
b) Write a description of the particle arrangement in the gas.
(2)
(2)
9. Water in a puddle on a pathway disappears on a warm day. Explain what
happens to the water particles.
(2)
10. Zara heated a liquid and recorded its temperature every minute. Here are her results.
a) Copy the axes and labels below onto graph paper.
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IGCSE STAGE 7 SCIENCE
Assignment 1
Plot Zara’s results on the grid
(4)
b)
c)
d)
e)
f)
(1)
(1)
(1)
(1)
(1)
Draw a line of best fit through the points you have plotted.
Which reading does not fit the pattern?
Suggest a reason for this.
What happens to the temperature between 5 and 8 minutes?
Explain why this happens.
11. Give the letter of the diagram that represents:
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IGCSE STAGE 7 SCIENCE
a)
b)
c)
d)
particles of a compound
particles of an element
atoms of a mixture
atoms of an element.
12. Give the symbol for each element.
a) i magnesium
ii oxygen
iii hydrogen
iv calcium
v boron
b) Name the element with the given symbol.
iC
ii Na
iii K
iv Cl
v Si
Assignment 1
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