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26 Oct – 1 Nov
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Biology · Topic 1
Living things and keys
How can you name a living thing you have never seen before?
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Chemistry · Topic 1
States and changes of state
Why does ice melt but stay water?
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Physics · Topic 1
Measuring and the pendulum
How can you time one swing of a pendulum accurately?
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All 78 modules
Biology
- Topic 1
Living things and keys
How can you name a living thing you have never seen before?
- Topic 1
Kingdoms and animal groups
Which group does this organism belong to?
- Topic 2
Cells under the microscope
What does a microscope reveal inside a cell?
- Topic 3
Diffusion and active transport
Why are cells so small?
- Topic 3
Osmosis
Why does a limp lettuce leaf go crisp in water?
- Topic 4
Food tests
What is in this food?
- Topic 5
Enzymes
What temperature does an enzyme work best at?
- Topic 6
How plants make food
What does a leaf need to make starch?
- Topic 6
Limits on photosynthesis
What limits how fast a plant photosynthesises?
- Topic 7
A balanced diet
Is this a balanced diet?
- Topic 7
The gut and physical digestion
Why do we chew our food?
- Topic 7
Chemical digestion
Where does each enzyme break food down?
- Topic 7
Absorption
How does the small intestine absorb so much so quickly?
- Topic 8
Xylem, phloem and water uptake
How does water get from the soil to the top of a plant?
- Topic 8
Transpiration
Why does a plant lose more water on a hot, windy day?
- Topic 9
The heart and double circulation
Why does blood pass through a mammal’s heart twice?
- Topic 9
Exercise and heart health
What happens to your heart rate when you exercise?
- Topic 9
Blood vessels
Why are arteries, veins and capillaries built so differently?
- Topic 9
Blood
What does each part of your blood do?
- Topic 11
Gas exchange and breathing
What changes in the air you breathe out?
- Topic 12
Respiration
How do cells release energy from food?
- Topic 13
Excretion and the kidneys
How do your kidneys clean your blood?
- Topic 14
Nerves and reflexes
How fast can you react?
- Topic 14
The eye
How does your eye cope with bright light and near objects?
- Topic 14
Hormones
Why does your heart keep pounding after a fright?
- Topic 14
Homeostasis
How does your body keep its inside conditions steady?
- Topic 14
Plant responses
How does a shoot find the light?
- Topic 15
Antibiotics
Why won’t antibiotics cure a cold?
Chemistry
- Topic 1
States and changes of state
Why does ice melt but stay water?
- Topic 1
Gases under pressure
What happens to a gas when you squeeze or heat it?
- Topic 1
Diffusion
How does a smell cross a room?
- Topic 2
Elements, compounds and mixtures
Is it one substance or several?
- Topic 2
Inside the atom
What makes sodium sodium?
- Topic 2
Isotopes
Can atoms of one element have different masses?
- Topic 2
Ions and ionic bonding
When does salt conduct electricity, and why?
- Topic 2
Covalent molecules
How do atoms share electrons?
- Topic 2
Giant structures
Why is diamond hard but graphite slippery?
- Topic 3
Formulae and equations
How do you balance a reaction?
- Topic 3
Relative masses
How heavy is a water molecule?
- Topic 3
The mole
How many particles are in a spoonful?
- Topic 3
Concentration, gas volumes and yield
How much product can you expect?
- Topic 5
Energy changes in reactions
Where does the heat come from?
- Topic 5
Bond energies
Can you predict the energy change from bonds?
- Topic 6
Physical and chemical changes
Did a new substance form?
- Topic 6
Rates of reaction
What makes a reaction go faster?
- Topic 6
Reversible reactions and equilibrium
Can a reaction run both ways at once?
- Topic 6
Redox
Who loses electrons, who gains them?
- Topic 7
Acids, bases and indicators
What does a colour change tell you?
- Topic 12
Mixtures and separation
The salt disappears. Has it gone?
- Topic 12
Crystallisation
How can a clear solution grow crystals?
- Topic 12
Distillation
Can we get the water back?
- Topic 12
Paper chromatography
What is hiding in the green dye?
Physics
- Topic 1
Measuring and the pendulum
How can you time one swing of a pendulum accurately?
- Topic 1
Speed and motion graphs
How can a graph tell the story of a journey?
- Topic 1
Acceleration, falling and drag
Why does a skydiver stop speeding up?
- Topic 1
Mass, weight and density
Why does a big log float when a small stone sinks?
- Topic 1
Resultant force
What does an unbalanced force do to a moving object?
- Topic 1
Stretching springs
How far will a spring stretch?
- Topic 1
Moments and balance
How can a child balance an adult on a seesaw?
- Topic 1
Momentum and collisions
Why do airbags and crumple zones save lives?
- Topic 1
Energy, work and power
Where does the energy go on a roller coaster?
- Topic 1
Energy resources
How should a town get its electricity?
- Topic 1
Pressure
Why does a dam need to be thicker at the bottom?
- Topic 2
The particle model
What makes smoke specks jiggle?
- Topic 2
Gas pressure and temperature
Why can a sealed can burst when it gets hot?
- Topic 2
Specific heat capacity
Why does water take so long to heat up?
- Topic 2
Melting, boiling and evaporation
Why does sweating cool you down?
- Topic 2
Conduction and convection
Why does a pan handle stay cool while the water boils?
- Topic 2
Thermal radiation
Why are houses in hot countries often painted white?
- Topic 3
Waves in a ripple tank
How do waves carry energy without carrying the water?
- Topic 3
Reflection in mirrors
Where is the image you see in a mirror?
- Topic 3
Refraction and total internal reflection
Why does a straw look bent in a glass of water?
- Topic 3
Lenses and images
How does a lens make a sharp picture on a screen?
- Topic 3
Light and the electromagnetic spectrum
What lies beyond the red end of a rainbow?
- Topic 3
Communicating with waves
How does a phone call reach the other side of the world?
- Topic 3
Sound waves
Why can't sound travel through space?
- Topic 3
Echoes and ultrasound
How can a ship measure the depth of the sea?
- Topic 4
Magnets and magnetic fields
What is the invisible pattern around a magnet?