This blue liquid is your indicator solution for the chemistry experiment. Next, pour about 1 tablespoon of the indicator into each of three clean clear plastic cups. Add 1 drop of lemon juice to the ...

Repeat steps 4-6. In the table in the printable PDF, record the item, the color the liquid turns, and if it is an acid, a base, or neutral. How can you tell if something is an acid or a base? Acids ...

Discover how red cabbage can act as a natural pH indicator, revealing whether substances are acids or bases through beautiful color changes. pH is a measure that tells us how acidic or basic a ...

An example of this is effervescence in which a reaction in a liquid produces bubbles of gas. Effervescence is an indicator of a chemical reaction taking place. Watch this video to see how ...

Often, the only liquid level indicator you need is your eyes, such as when looking at your cold beverage on a summer’s day. Other times, though, it’s useful to have some kind of indicator ...

Students could test the pH of fresh and sea water using universal indicator and a pH probe ... This short film will be relevant for teaching chemistry and science in general at KS3 and KS4 ...

The water is converted into gaseous H2 and O2 at the electrodes. Attach one alligator clip from the battery pack to each electrode. Oxygen and H+ are formed at the anode (oxidation), and the indicator ...