The shape of solid is (a)  

the shape of liquid is ________ ______

(a)  

the shape of gas is (a)  

the volume of gas is (a)  

The melting is the change from a _______ to a _______

(a)  

When the particles of the solid gain heat, they start to vibrate faster until they break away from their fixed positions. The particles start to slide over each other and the substance is thus changed to a liquid. This is the process of (a)  

The change of a liquid to a solid it is call

(a)  

A  (a)   shows how the temperature of a pure liquid changes as it is cooled to its freezing point

the temperature at which a liquid becomes a solid is the (a)  

 the temperature at which a solid becomes a liquid is (a)  

(a)   : the temperature at which a liquid becomes a solid. 

kinetic energy of particles of solid is

(a)  

The particles in a gas are ______ out far away from each other. The particles move about randomly all the time. They move very f____.

(a)  

If the gas is inside a container, then the particles h___ the walls of the container as they m___ around. Each time a particle collides with the wall, it causes a t___ f____. There are huge numbers of particles colliding with the wall, an all these tiny forces add up. We call this g__ p_______.

(a)  

What happens is you squeeze the gas particles into a smaller space? There are the same number of gas particles, but they will now h__ the walls of their container more o____. This makes the g__ p_______ grater.

(a)  

 what happens when you inflate a football?. You push more air into the space inside the football. There are more a__ p_________ inside the football, so there are more particles and more frequent c_________ with the walls of the football. This increases the p_______ inside the football.

(a)  

If you warm a gas, the particles have more e_____ so they move about more q_____. They hit the walls of their container more o____. This increases the p_______.

(a)  

the particles of air around you are b________ into your skin. These moving air particles cause p________ on you and on everything else on Earth.

(a)  

gas particles move ____ _____ _____

(a)  

when a gas particles bump into the side of their container they cause (a)  

The pressure is higher when there are more ______ and when the temperature is _____

(a)  

(a)   : Is the movement of particles from high concentration to low concentration

Diffusion: The m__________ of particles from h_____ concentration to l___ concentration

(a)  

S______ particles cannot move, so they could not d_____

(a)  

L_____ and g_____ particles can freely m____, so they could ______

(a)  

Factors affecting diffusion: The s___ of the matter, T________, size of the p________ and c_________ gradient

(a)  

The state of matter: Diffusion happens q______ in gases than in l____ cause the particles have more k______ energy

(a)  

Temperature: at h_____ temperature the particles have more k____ energy and move q_____

(a)  

Size of the particle: b______ particles are h______ and take longer to move and so d________

(a)  

Concentration gradient: If there is a b______ difference between h____ and l____ areas, the particles move f_______

(a)