# SAT Practice: General Science 3 (2013/Levels 3-5)

In this worksheet students practice general science in the 2013 SATs style questions similar of those contained in past SATs papers.

Key stage:  KS 2

Curriculum topic:  Practice Papers

Curriculum subtopic:  SAT Practice Papers

Difficulty level:

### QUESTION 1 of 10

This worksheet contains 20 SAT style questions. Questions are taken from across the whole science strand including scientific enquiry (SAT 2013).

These questions are typical of the type students will come across during the examination and are appropriate for those students who will sit the level 3-5 paper.

A boy adds an indigestion tablet to a beaker of water.

The tablet dissolves in the water, as it does so the boy notices that the water fizzes.

a measurement

an observation

Match the scientific variable to the instrument that is used to measure it.

## Column B

distance
ruler
temperature
newton meter
time
thermometer
weight
stopwatch

The boy also notices that, when he adds an indigestion tablet to a beaker of water, the temperature of the water changes.

He decides to carry out an investigation to test his observation.

How should he carry out his investigation?

He should touch the side of the beaker before and after adding the tablet to the water.

He should use a thermometer to measure the temperature of the water before and after adding the tablet to the water.

Charlie is investigating friction.

He releases a toy car from the top of a ramp and allows it to run over different surfaces.

Charlie measures how far the car travels over each surface before it stops.

Ruby is carrying out the same investigation, Ruby pushes her car from the top of the ramp.

Is Ruby carrying out a fair test?

no

yes

Ruby collects her measurements and puts them into a table.

 Metal Sandpaper Wood Stopping distance (cm) 75 15 32

Why is the stopping distance greater on the metal surface than the other two surfaces?

It is rough, therefore there is more friction.

It is smooth, therefore there is less friction.

Friction is generated when two surfaces touch each other.

Friction generates heat and what other form of energy?

Write one word.

William is investigating plant growth.

He puts two identical plants into different pots: one large, one small.

William measures their growth over a whole term.

How should William measure the growth of the plant?

He should count the number of leaves and record these every day.

He should measure the length of the stem every week using a ruler and record it

The stem and leaves of a plant have a specific role.

Blood, bones and muscles are tissues that have specialised roles within the human body.

Match the type of tissue to the correct role.

## Column B

blood
takes oxygen to cells
bones
help the body to move
muscles
support and strengthen the body

Identify the waste product that is carried by the blood.

carbon dioxide

glucose

Humans need a balanced diet to keep them healthy.

Which food group is used by the human body for growing new cells.

carbohydrate

fat

fibre

protein

Sophie investigated the evaporation of water over a week.

She placed two saucers of water in different places around her classroom. Each saucer had the same volume of water in it.

Sophie placed one saucer on a shelf above a radiator, and the other next to a window.

She measured the depth of water in each saucer at 9:30 am and 3:15 pm each day.

She recorded her results in a table.

 Depth of water in the saucer (mm) Shelf Radiator Day 9:30 3:15 9:30 3:15 Monday 50 49 50 47 Tuesday 48 48 45 38 Wednesday 47 46 36 34 Thursday 45 41 33 31 Friday 40 39 30 28

On one day during the week it snowed and the outside temperature dropped to below freezing.

Which day did it snow?

Write one word.

Evaporation is when a substance changes from _______________.

a gas to a liquid

a gas to a solid

a liquid to a gas

a solid to a gas

Sophie doesn't think her experiment was a fair test.

She decides to repeat her practical.

How could Sophie improve her experiment and the data she collects from it?

measure the depth of water in each saucer more often

place two identical saucers at each location

Sophie measured the depth of the water using a ruler.

What should Sophie use to measure the total volume of water left in each saucer at the end of her investigation?

a measuring cylinder

a measuring jug

a pop bottle with markings on it

a tea cup

Sophie decides to draw a graph of her results.

She creates a new results table showing the total amount of water lost each day from each saucer.

 Total depth of water lost each day (mm) Day Shelf Window Monday 1 3 Tuesday 0 7 Wednesday 1 2 Thursday 4 2 Friday 1 2

What type of graph should Sophie draw?

bar chart

line graph

Lewis and Joey are investigating tooth decay.

They placed 25 g of calcium carbonate granules into four beakers and added 100 ml of liquid to each beaker.

The liquids they added were: cola, dilute squash, milk, and water.

Lewis and Joey left the beakers on the side, together, for a week. At the end of the week they measured the mass of calcium carbonate left in each beaker.

They recorded their results in a table.

 Beaker Mass of calcium carbonate (g) 1 23 2 25 3 5 4 19

Teeth contain calcium.

Which beaker was the most likely to contain cola?

1

2

3

4

What type of microbe can also cause tooth decay?

bacteria

virus

Ed and Jenny are going to drop a ball from a height of 100 cm onto different surfaces and investigate how high it bounces.

What force is acting on the ball to pull it towards the ground?

Write one word.

Ed and Jenny drop the ball onto concrete, grass and sand.

They measure how high the ball bounces using a metre ruler.

Match the height of the bounce to the surface it came off.

## Column B

concrete
85 cm
grass
3 cm
sand
51 cm

Sand is a solid.

Solids have ________________________.

a fixed shape and volume

a shape and volume that can change depending on the container it is placed in

• Question 1

A boy adds an indigestion tablet to a beaker of water.

The tablet dissolves in the water, as it does so the boy notices that the water fizzes.

an observation
EDDIE SAYS
During an experiment, when you notice that something has occurred or if you spot a pattern in the results you make an observation.
When you collect information about an experiment, such as how long it takes or how hot it gets, you make a measurement. A measurement is taken using a specialised instrument like a stopwatch or a thermometer.
• Question 2

Match the scientific variable to the instrument that is used to measure it.

## Column B

distance
ruler
temperature
thermometer
time
stopwatch
weight
newton meter
EDDIE SAYS
Weight is a force so it is measured in newtons, using a newton meter.

Can you think of the units that each variable is measured in?
Sometimes a variable like distance can be measured using more than one unit; for example, large distances are measured in kilometres (Km) whilst very small distances are measured in millimetres (mm).
Watch your spelling here folks, we often measure things using meters, but the unit of distance is a metre.
• Question 3

The boy also notices that, when he adds an indigestion tablet to a beaker of water, the temperature of the water changes.

He decides to carry out an investigation to test his observation.

How should he carry out his investigation?

He should use a thermometer to measure the temperature of the water before and after adding the tablet to the water.
EDDIE SAYS
Good scientists always investigate their observations. This helps them to understand the reasons why their particular observation has happened. It also means they can check that their observation wasn't a coincidence.
• Question 4

Charlie is investigating friction.

He releases a toy car from the top of a ramp and allows it to run over different surfaces.

Charlie measures how far the car travels over each surface before it stops.

Ruby is carrying out the same investigation, Ruby pushes her car from the top of the ramp.

Is Ruby carrying out a fair test?

no
EDDIE SAYS
Ruby will push the car of the ramp with slightly different amounts of force each time.
This means that the cars will be travelling at different speeds when they hit the test surface and so could take a longer or shorter distance to stop.
• Question 5

Ruby collects her measurements and puts them into a table.

 Metal Sandpaper Wood Stopping distance (cm) 75 15 32

Why is the stopping distance greater on the metal surface than the other two surfaces?

It is smooth, therefore there is less friction.
EDDIE SAYS
Metals are smooth and shiny. Smooth and shiny surfaces generate less friction than rough surfaces. This is why ice and supermarket floors are really slippy.
• Question 6

Friction is generated when two surfaces touch each other.

Friction generates heat and what other form of energy?

Write one word.

sound
Sound
EDDIE SAYS
When two surfaces rub against each other friction is generated. You can hear this force.
Think about when you are in a car driving along a road, you often can hear the noise of the tyres on the road surface as you move along.
• Question 7

William is investigating plant growth.

He puts two identical plants into different pots: one large, one small.

William measures their growth over a whole term.

How should William measure the growth of the plant?

He should measure the length of the stem every week using a ruler and record it
EDDIE SAYS
The plants are identical so the number of leaves will not change.
Plants grown in different pots may grow to different heights, so William should measure the stem length.
• Question 8

The stem and leaves of a plant have a specific role.

Blood, bones and muscles are tissues that have specialised roles within the human body.

Match the type of tissue to the correct role.

## Column B

blood
takes oxygen to cells
bones
support and strengthen the body
muscles
help the body to move
EDDIE SAYS
Muscles and bones are attached to each other. When a muscle contracts the bone it is attached to moves.
Bones like the rib cage, skull and spine protect vital organs like the heart, which if damaged, could cause death.
All cells in the body need oxygen to carry out the process of respiration and generate energy.
• Question 9

Identify the waste product that is carried by the blood.

glucose
EDDIE SAYS
All cells in the body need oxygen to carry out the process of respiration and generate energy. Cells use glucose for this process too.
Carbon dioxide is produced by respiring cells. It is a waste product. Blood carries carbon dioxide to the lungs where we breathe it out.
• Question 10

Humans need a balanced diet to keep them healthy.

Which food group is used by the human body for growing new cells.

protein
EDDIE SAYS
Pretty much everything in the body is made from protein.
We need to eat protein to enable our cells to make the proteins we need from them.
• Question 11

Sophie investigated the evaporation of water over a week.

She placed two saucers of water in different places around her classroom. Each saucer had the same volume of water in it.

Sophie placed one saucer on a shelf above a radiator, and the other next to a window.

She measured the depth of water in each saucer at 9:30 am and 3:15 pm each day.

She recorded her results in a table.

 Depth of water in the saucer (mm) Shelf Radiator Day 9:30 3:15 9:30 3:15 Monday 50 49 50 47 Tuesday 48 48 45 38 Wednesday 47 46 36 34 Thursday 45 41 33 31 Friday 40 39 30 28

On one day during the week it snowed and the outside temperature dropped to below freezing.

Which day did it snow?

Write one word.

Tuesday
tuesday
EDDIE SAYS
Look vary carefully at the data in the table. On Tuesday the depth of water in the saucer near the radiator drops by seven millimetres whilst the saucer near the window has not changed.
This has happened because the radiator was turned up due to the cold temperatures.
• Question 12

Evaporation is when a substance changes from _______________.

a liquid to a gas
EDDIE SAYS
Evaporation is when a liquid turns to a gas.
It just is guys! You need to learn the meaning of this word because it will stay with you for the rest of your life.
• Question 13

Sophie doesn't think her experiment was a fair test.

She decides to repeat her practical.

How could Sophie improve her experiment and the data she collects from it?

measure the depth of water in each saucer more often
place two identical saucers at each location
EDDIE SAYS
When they are investigating something, scientists try to collect as much data as they possibly can.
Often a scientist will take more than one measurement from the same place at the same time, this helps them to compare their results.
Comparing results makes it easier to spot any experimental errors or results that have come about by chance.
• Question 14

Sophie measured the depth of the water using a ruler.

What should Sophie use to measure the total volume of water left in each saucer at the end of her investigation?

a measuring cylinder
EDDIE SAYS
Measuring cylinders are the best apparatus to use for measuring small volumes of liquid. The scale on a measuring jug would be too big so it would be difficult to make an accurate reading.
• Question 15

Sophie decides to draw a graph of her results.

She creates a new results table showing the total amount of water lost each day from each saucer.

 Total depth of water lost each day (mm) Day Shelf Window Monday 1 3 Tuesday 0 7 Wednesday 1 2 Thursday 4 2 Friday 1 2

What type of graph should Sophie draw?

bar chart
EDDIE SAYS
Bar charts are an excellent way to show a comparison between two different things.
Have a go at drawing this bar chart for yourself. Put the water lost up the side and the days of the week along the bottom. Draw two bars for each day. Choose two colours, one for the radiator saucer one for the window. Colour each bar in correctly and you should have a really neat looking graph which tells a nice story about Sophie's investigation.
• Question 16

Lewis and Joey are investigating tooth decay.

They placed 25 g of calcium carbonate granules into four beakers and added 100 ml of liquid to each beaker.

The liquids they added were: cola, dilute squash, milk, and water.

Lewis and Joey left the beakers on the side, together, for a week. At the end of the week they measured the mass of calcium carbonate left in each beaker.

They recorded their results in a table.

 Beaker Mass of calcium carbonate (g) 1 23 2 25 3 5 4 19

Teeth contain calcium.

Which beaker was the most likely to contain cola?

3
EDDIE SAYS
Cola is a relatively strong acid. It will react will calcium.
In your mouth, cola wears away (corrodes) the enamel coating of your teeth. This leads to tooth decay.
• Question 17

What type of microbe can also cause tooth decay?

bacteria
EDDIE SAYS
Bacteria cause tooth decay. They live on the surface of teeth, especially those damaged by fizzy drinks, and feed off the sugars in the mouth.
• Question 18

Ed and Jenny are going to drop a ball from a height of 100 cm onto different surfaces and investigate how high it bounces.

What force is acting on the ball to pull it towards the ground?

Write one word.

Gravity
gravity
EDDIE SAYS
The Earth's gravity is quite strong.
Gravity is the pull force from the centre of the Earth which stops us from flying off in different directions all the time.
• Question 19

Ed and Jenny drop the ball onto concrete, grass and sand.

They measure how high the ball bounces using a metre ruler.

Match the height of the bounce to the surface it came off.

## Column B

concrete
85 cm
grass
51 cm
sand
3 cm
EDDIE SAYS
Concrete is a very firm object, we can expect a ball to bounce quite high off it.
Grass has a lower bounce than concrete.
Sand is a solid like concrete. However, a grain of sand is very small.
If you picked up a handful of sand you would have thousands and possibly millions of tiny grains in your hand. Because of this sand sometimes appears to behave like a liquid; it can be poured and stored in containers. When a ball hits it it will make splash rather than rebound.
• Question 20

Sand is a solid.

Solids have ________________________.