The missing word in the blue box is

Evaporation is when ice changes into water:

Heating increases the speed of particles and cooling slows them down:

Ice will float because maximum density is achieved at 4 degrees Celsius, after which the density decreases

Which state of matter has the lowest density?

A cup full of ice and water will not overflow when the ice melts:

Why should you not fill up your water bottle to the top when freezing it?

Which is the least dense?

When you push down the handle of a bike pump, and block the end, the air volume__________ and the air pressure __________:

Particles move ______ when heat energy is applied

A hot air balloon works because

Diffusion is the net movement of particles from an area of ______ concentration to _______ concentration

If the temperature of water is increased, the solubility of sugar will ________

Water is a ________

Two joined atoms that are identical results in a

Which of the following is NOT an atom of CuSO4?