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WorksheetsScience Practice
Total questions: 45
Worksheet time: 1hrs 22mins
Look at the symbols used in electrical circuits. Which symbol shows an ammeter?
A
B
C
D
Look at the symbols used in electrical circuits. What is the name of the component shown by symbol C?
Voltmeter
Buzzer
Variable Resistor
Fixed Resistor
Mia wants to measure the voltage across a lamp.
Complete the circuit diagram to show how Mia connects a voltmeter to measure the voltage.
Look at the diagram of part of the Periodic Table of the elements. Use the Periodic Table to write the electronic structure of aluminium, Al.
Look at the diagram of part of the Periodic Table of the elements. How many protons are in an atom of fluorine, F?
7
8
9
10
A sodium atom, Na, forms a sodium ion, Na+. Describe, in terms of electrons, how a sodium ion is made from a sodium atom.
Look at the table. It shows information about some properties of the Group 1 elements. Describe the trend in boiling point as you go down Group 1.
Look at the table. Which property does not show a clear trend?
Melting point
Boiling point
Density
Atomic radius
Look at the table. Predict the melting point of rubidium.
Look at the table. Which element is the least reactive?
Li
Na
K
Rb
The drawing shows the positions of Africa and South America on the Earth. Scientists think that these two continents are on separate tectonic plates. What is a tectonic plate?
Which two kinds of evidence are most useful to show that South America and Africa were
once joined? Tick two boxes.
comparing their climates
comparing their rocks
comparing their sizes
comparing their fossil records
comparing their ecosystems
Blessy uses a model to explain how tectonic plates move apart. Complete these sentences about Blessy’s model. The tectonic plates are represented by the (a)
Blessy uses a model to explain how tectonic plates move apart. Complete these sentences about Blessy’s model. The water represents the (a)
Blessy uses a model to explain how tectonic plates move apart. Complete these sentences about Blessy’s model. The water moves in a cycle in a process called (a)
Blessy uses a model to explain how tectonic plates move apart. Complete these sentences about Blessy’s model. The Bunsen burner represents the heat source from the (a)
The diagram shows a white-hot spark. Complete the sentences about a white-hot spark. A white-hot spark is at a very high .....
Density
Temperature
Heat energy
Vibrations
The diagram shows a white-hot spark. Complete the sentences about a white-hot spark. It does not contain much ..... because it does not contain many .....
Particles
Temperature
Heat energy
Pressure
Aiko is making some magnesium chloride. She reacts magnesium with dilute hydrochloric acid. A gas is made during this reaction.
What is the name of this gas?
Carbon dioxide
Oxygen
Hydrogen
Carbon
Aiko is making some magnesium chloride. She reacts magnesium with dilute hydrochloric acid. Step 2 separates the magnesium chloride solution from unreacted magnesium metal.
What is the name of this process?
Evaporation
Filtration
Crystalization
Combustion
Aiko is making some magnesium chloride. She reacts magnesium with dilute hydrochloric acid. Step 3 removes some of the water by heating the magnesium chloride solution.
What is the name of this process?
Evaporation
Filtration
Crystalization
Combustion
Aiko also reacts zinc oxide with dilute sulfuric acid. Zinc sulfate and water are made.
Write the word equation for this reaction.
Jamila makes five sounds.
She looks at the trace each sound makes on an oscilloscope. The traces are labelled A, B, C, D and E. Look at trace A. Complete the sentences. Which sound is louder than A?
B
C
D
E
Jamila makes five sounds.
She looks at the trace each sound makes on an oscilloscope. The traces are labelled A, B, C, D and E. Look at trace A. Complete the sentences. Which sound has a higher frequency than A?
B
C
D
E
Jamila makes five sounds.
She looks at the trace each sound makes on an oscilloscope. The traces are labelled A, B, C, D and E. Look at trace A. Complete the sentences. Which sound has a lower amplitude than A?
B
C
D
E
Jamila makes five sounds.
She looks at the trace each sound makes on an oscilloscope. The traces are labelled A, B, C, D and E. Look at trace A. Complete the sentences. Which two sounds have a different pitch to A?
B
C
D
E
Oliver investigates conduction of thermal (heat) energy. He heats a metal rod. The metal rod has a pin attached with wax. Oliver measures the time it takes before the pin falls off the rod. The pin takes 45 seconds before it falls. Describe how Oliver makes his result more reliable.
Oliver does a risk assessment for his investigation. He considers the safety hazards. Describe two of the safety hazards in Oliver’s investigation.
Look at the diagram of a water molecule, H2O. State the type of bonding in a water molecule.
(a)
Look at the diagram of a water molecule, H2O. Explain how can you tell the bond by using the diagram.
An oxygen atom has the electronic structure 2.6. To which group of the Periodic Table does oxygen belong?
2
4
6
8
Yuri investigates some sound waves. Yuri looks at the waveforms the sound waves make on an oscilloscope. Complete the diagram to show what happens when each pair of waveforms interacts.
Yuri investigates some sound waves. Yuri looks at the waveforms the sound waves make on an oscilloscope. Complete the diagram to show what happens when each pair of waveforms interacts.
Lily compares the densities of three substances A, B and C. Calculate the density of substance A.
Which substance is gas?
A
B
C
Answer the questions about thermal (heat) energy transfer. Choose from the list. What is the main form of thermal energy transfer in solids?
(a)
Answer the questions about thermal (heat) energy transfer. Choose from the list. What is the main form of thermal energy transfer in liquids and gases?
(a)
Answer the questions about thermal (heat) energy transfer. Choose from the list. Saucepan handles are made from wood.
This is because wood is a good (a)
Answer the questions about thermal (heat) energy transfer. Choose from the list. Copper is a metal, so it is a good (a)
Answer the questions about thermal (heat) energy transfer. Choose from the list. The shiny surface in a flask is helping to reduce energy transfer by (a)
Safia investigates the current in a circuit containing two identical lamps. What do the results tell you about what happens to the current in the circuit at points X and Y?
Predict the values of A2, A3 and A4 if the value for A1 is 1.6A.
One of the results is anomalous.
Circle the result in the table that is anomalous.
Carlos investigates electrical resistance. Calculate the resistance of resistor R. Include the units.
Carlos replaces R with a resistor of greater resistance.
What happens to the reading on the ammeter?
