Students explore the concept that chemical reactions involve the breaking of bonds between atoms in the reactants ... and cause a color change. Students also explore endothermic and exothermic ...

It highlights everyday examples of chemical changes, such as burning wood and the digestion of food. The film illustrates how molecules and atoms interact during these changes, using examples like ...

The speed of a chemical reaction is affected ... It can be calculated by measuring changes in reactants/products. Atomic structure Atoms are made from protons, neutrons and electrons.

Atoms are rearranged during a chemical reaction, but the number of atoms does not change. Evidence of chemical reactions includes a large temperature change, bubbles, or a colour change.

Now you know that atoms are really small and that there are huge numbers of them, but here are a few other atom facts you might find interesting. Where do atoms come from? Believe it or not, the atoms ...

Researchers discover a way to potentially reduce CO2 emissions and decrease the need for chlorine to produce ethylene oxide — ...

Scientists at Oak Ridge National Laboratory have developed a method that can track chemical changes in molten salt in real ...