KS3 Y8 Particle Theory Explaining Changes in State

Gap-fill exercise.

Name:_________________________Class:___________________Date:__________________

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!
   all      attached to      break free      change places      close      close together      compressed      faster and faster      fixed position      fixed shape      fixed volume      force of attraction      liquid      more and more heat energy      move past      no fixed volume      no shape      shape      very fast      vibrate more and more      weakly   
Solids have particles that are . The particles are in and they cannot with neighbouring particles. For this reason solid objects have .

When heated the particles in a solid will start to . Particles are vibrating all the time but now they vibrate more and more when is given. Eventually the vibration is so much that they can start to move past each other.

It is now a .

In the liquid state the particles are still and each other but now they can each other. Liquids can therefore change their . They usually take the shape of the container they are in. They have though a .

When heated the liquid particles will move . Eventually they will from each others . They are now free to move in possible directions on their own. They have so they fill up the container they are in. Also they have and therefore can be .

 

 

Google