Why does a metal expand when heated?

What is the equation for pressure in solids?

What is the equation for pressure in liquids?

Would there be more pressure exerted on a smaller facet or a larger facet and why?

What is a pascal (Pa)?

Why does a wide puddle evaporate more quickly than a deep puddle?

Which would evaporate quicker and why?

A) A puddle on a hot day
B) A puddle on a cold day

What is the difference between boiling and evaporating?

Do molecules vibrate quicker in hotter or colder metals and why?

How does heat transfer with conduction?

Why are solids better heat conductors than liquids and liquids than gases?

Why does hot air rise and why doesn't cold air rise?

How does heat transfer?

What is thermal energy transferred by?

What does a vacuum flask do?

How does a vacuum flask stop heat transfers?

How do you stop heat loss in a home
(5 methods)?

Can energy be created?

What is the unit for energy and what does it stand for?

What is the formula to find out the efficiency?

Does the sun rise in the east or the west?

Is the sun higher in the summer or the winter and why?

Why is it hotter in the summer?

What does it mean if a hemisphere is tilted towards the sun?

Name all the equinoxes and solstices

What is an equinox and what is a solstice?

What is the approximate tilt of the earth?

What is a solar eclipse?

What is a lunar eclipse?

What are stars used for?

What are light years?

What is a constellation?

What is a comet?

What is a moment?

What is the formula for moments?

What happens at equilibrium?

What is the centre of mass of an object?

Is it better if the centre of mass is lower or higher?

How do you make an object more stable?

What is stable equilibrium?

What are machines?

How do machines work?