8th Grade Science Semester 1

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What does it mean if a solution has a pH greater than 7?

Back

A solution with a pH greater than 7 is considered a base.

Front

What does it mean if a solution has a pH less than 7?

Back

A solution with a pH less than 7 is considered an acid.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and typically has a sour taste.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) in a solution and typically has a bitter taste and slippery feel.

Front

What is a neutral solution?

Back

A neutral solution has a pH of 7, meaning it is neither acidic nor basic.

Front

What safety equipment should be worn in a laboratory?

Back

Safety goggles, gloves, and a lab coat should be worn to protect against chemical spills and splashes.

Front

Why is it important to wash hands after working in a lab?

Back

Washing hands removes any chemicals or biological materials that may have come into contact with skin, preventing contamination.

Front

What are some common indicators of acids and bases?

Back

Litmus paper, phenolphthalein, and pH paper are common indicators used to test for acids and bases.

Front

What is the taste of acids?

Back

Acids typically taste sour.