CAMBRIDGE LOWER SECONDARY SCIENCE 7 UNIT 3: LANGUAGE DEVELOPMENT
Name ___________________________________
Date _____________
3.1 vocabulary about
energy
1
In each of these sentences, one word is underlined.
Tick () the box beside the correct meaning of the underlined word.
a
Gravity causes an object to fall.
increases its mass
makes it have weight
makes it happen
pulls it down
b In space there is no air resistance.
force that acts toward the centre of a planet
force that decreases the speed of a moving object
force that decreases the weight of an object
force that acts on any object on Earth
2
Here are some energy stores or transfers, but the letters in the words have been scrambled.
What are the words?
a
ERLMATH _____________________________________________________________________
b CHILEMAC ____________________________________________________________________
c
CATLIES ______________________________________________________________________
d CITEINK ______________________________________________________________________
Cambridge Lower Secondary Science 7 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021
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CAMBRIDGE LOWER SECONDARY SCIENCE 7 UNIT 3: LANGUAGE DEVELOPMENT
Name ___________________________________ Date ______________
3.2 Energy and gravity
1
Sofia is investigating how hot water cools in a paper cup.
She has the instructions, but the instructions are not in the correct order.
Write the numbers in the boxes to put the instructions in the correct order. The first one has been done
for you.
record the temperature of the water every minute
1
heat water to a temperature of 60 °C using a Bunsen burner
pour the water into a paper cup
draw a line graph of the results
measure 100 cm3 of the hot water with a measuring cylinder
2
Read the questions a–e.
a
What pulls objects toward the centre of the Earth?
b What must be changed or transferred for something to happen?
c
What did the Solar System form from?
d What causes the tides on Earth?
e
What energy store increases when something moves higher?
Write the letter of the question beside the correct answer.
A cloud of dust and gas _________________
Energy _________________
Gravitational potential _________________
Gravity from the Sun and Moon _________________
Gravity _________________
Cambridge Lower Secondary Science 7 – Mary Jones, Diane Fellowes-Freeman and Michael Smyth © Cambridge University Press 2021
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