Why do you think blowing on a candle flame makes it go out? Since there is a flame in this experiment, be sure that a teacher, parent, or other adult works with you. Wear goggles when doing this ...

Since you are using isopropyl alcohol, be sure that a teacher, parent, or other adult is working with you. Be sure to keep the alcohol away from heat or any flames. Read and follow all the warnings on ...

analysis and evaluation of these experiments. There are three core practical activities in the Chemical changes section: investigate the change in pH when adding powdered calcium hydroxide or ...

The way the body ages could be more resilient than previously thought, a new study suggests.

You could be asked questions about the apparatus, methods, safety precautions, results, analysis and evaluation of these experiments ... practicals in the Chemical Changes section: Required ...