Production of a gas, color changes, a change in temperature, and the formation of a precipitate are all evidence of a chemical reaction. NGSS 5-PS1-4: Conduct an investigation to determine whether the ...

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.

Bubbles – Many chemical reactions you see in the science lab make a chemical which is a gas, so you see bubbles. A colour change – If the new chemicals are a different colour from the original ...

Gases are essential for many chemical reactions, and bubbles are one way for these gases to be held in solution. When ...

The mass of a substance – solid, liquid or gas – is measured with a balance. This mass balance could be attached to a data logger to measure the decrease in mass against time continuously and ...

Anakapalli district superintendent of police Tuhin Sinha said the incident happened on Monday morning in the production block ...

Anakapplli: Two workers at a private pharmaceutical company in Jawaharlal Nehru Pharma City, Anakapalli district, were ...