What is the order of the planets in our solar system?

What is between Mars and Jupiter?

What orbits the sun?

What orbits planets?

What's the difference between planets and stars?

How did the sun form?

How did the planets form?

What is the oldest rock on Earth and how old is it?

What are asteroids?

What are comets?

How many stars are in the Milky Way?

What makes up most of the Universe?

What is a light year?

How does parallax work?

How can brightness measure distance?

Why are space telescoped used?

Why do we see stars and galaxies in the past?

What is red shift and how does it show the universe is expanding??

What is the 'Big Bang' theory?

How could the Universe end?

Why is this difficult to guess?

Why is Earth an 'active planet'?

What is the rock cycle?

What was believed before Continental Drift?

What did he hypothesise?

What was Wegener's evidence?

Why was his theory rejected at first?

How did seafloor spreading prove Wegener's theory?

How do volcanoes form?

How do earthquakes occur?

How are mountains formed?

What are seismic waves?

What are P- waves?

What are S-waves

What happens when S- waves reach the liquid core?

What happens to P-waves as they enter the liquid core?

What is the wavelength?

What is the amplitude?

What do waves transfer?

What is radiation?

What is the electromagnetic spectrum?

What is a photon?

What happens to radiation as you go through the spectrum?

What is something called that emits radiation?

What happens to thermal radiation as you increase the temperature?

What speed does radiation travel?

What can happen to radiation once it has left the source?

What is intensity?

What happens to intensity as distance increases?

What is ionisation?

What are the 3 types of ionising radiation and why are they ionising?

What can this do to your cells?

How do X-rays work?

How are people protected from any potential X-ray dangers?

How can people be protected from UV rays?

What radiation can cause heating?

How do microwave ovens work?

What would they do to body cells and how is this risk prevented?

How are microwaves used in mobile phones?

What are perceived risks of using mobile phones?

What radiation can pass through the atmosphere easily?

What are the greenhouse gasses and what do they do?

What is the greenhosue effect?

What is ozone?

How is it formed?

What inputs carbon dioxide into the atmosphere?

What removes carbon dioxide from the atmosphere in the carbon cycle?

The carbon cycle has been balanced for thousands of years. How are humans upsetting this?

What is a climate model?

What does the climate model show?

What are the consequences of global warming?

How is
a) infrared
b) radio waves
c) microwaves
Radiation used in communication?

Why are radiowaves adn microwaves good at transmitting information over long distances?

What is the difference in communicating wavelengths compared to normal radiowaves and microwaves?

How do satellites work?

How do optical fibres work?

How is information transmitted?

What is the difference between analogue and digital?

What happens to signals on their way and how is this overcome?

Why are digital signals better than analogue?

What is power?

What does it mean to have 'high power'?

What is efficiency?

What does a Sankey Diagram show?

Where is energy lost in a power station?

Why do we need to reduce the amount of energy we use?

How can we save energy at home?

What is cost effective?

What is payback time?

How can energy be saved in the workplace?

How can the government encourage energy saving?

What does renewable mean?

Why do we need to use renewable sources?

What's a problem with renewable energy?

How do primary resources work in power stations?

How can fossil fuels harm the environment?

Why do we use fossil fuels?

How does a nuclear power station work?

What are the advantages of this?

What are the disadvantages?

What is the difference between contamination and irradiation?

How does wind power work?

What are the advantages?

What are the disadvantages?

How do solar cells work?

What are the advantages?

What are the disadvantages?

How does wave power work?

What are the advantages?

What are the disadvantages?

How do tidal barrages work?

What are the advantages?

What are the disadvantages?

How do biofuels work?

What are the advantages?

What are the disadvantages?

What is geothermal energy?

What are the advantages?

What are the disadvantages?

What is hydroelectricity?

What are the advantages?

What are the disadvantages?

Why do we need to use a mix of energy sources?

What do we need to consider when deciding what energy source to use?

What do we consider with economics?

What do we consider with environmental impact?

How does a generator work?

What is electromagnetic induction?

How can you increase the voltage and current in the wire?
What does this mean in terms of energy?

What is the National Grid?

Why is high voltage used instead of high current?

What happens to voltage before it reaches our homes?