Chemistry Unit 0 Vocabulary

An example of a physical change is bubbling after vinegar and baking soda are mixed.

There are many students in the class that have dogs. Is this qualitative or quantative?

Definition: a type of change that alters the physical properties of a substance but does not change its composition

There are 50 mL of water in the breaker. This is an example of a quantitative observation.

Which of the following is NOT an example of a chemical change?

Name the piece of lab equipment.

Name the lab equipment.

Definition: fact based, uses measurements and data

Evidence of a chemical reaction is a temperature change.

Name the piece of lab equipment.

Definition: observation using measuring tools and is given in a number form (example: 5 milliliters of liquid)

This is an example of a qualitative observation. The solution in the beaker reacted with the universal indicator.

Definition: opinion based, educated guess, sterotype, based on previous experience or knowledge

Ice melting into water is an example of a _______.

Using a graduated cylinder is the most accurate way to measure a liquid.