The film explains the concept of chemical changes, where two or more materials combine to form entirely different substances.

Instead, the atoms rearrange themselves to form new chemicals. This is known as a chemical change. The other kind of change in chemistry is a physical change, which is when a substance changes ...

Some chemical reactions change temperature, change color, produce a gas, or make a solid from two liquids. Try this reaction and see what it does! Pour 1 tablespoon of hydrogen peroxide into a cup.

The greater the frequency of successful collisions between reactant particles, the greater the reaction rate. Reversible reactions - AQA Chemical reactions are reversible and may reach a dynamic ...

These granules are a special water-absorbing chemical called sodium polyacrylate ... Add about ¼ cup of water and watch from the side. The sodium polyacrylate will change into a gel as it absorbs the ...

Examining the classical change model to promote conceptual learning in core engineering courses. Chemical Engineering Education (Winter ... Computer simulations vs. physical experiments: a gender ...