8th grade Science modified midterm exams

What is the process scientists use when planning an experiment?

• Scientific Questioning

• Scientific Method

A hypothesis is a....

• educated guess

• problem

Who is responsible for lab safety in the classroom?

• Everyone

• Teacher Only

A list of supplies needed for an experiment.

• Materials

• Data

The pH scale is a range from:

• 0-14

• 1-7

What is the only substance with a neutral pH of 7?

• Orange Juice

• Water

Exothermic reactions...

• Release energy

• Absorb energy

What is the symbol for hydrogen?

• He

• H

What is the symbol for nitrogen?

• Ne

• N

Ice melting is an physical change

• True

• False