Unit 0 Chem Com

What scientific tool is used to measure volume of liquids, such as water and chemicals?

• Meter Stick

• Ruler

• Graduated Cylinder

• Triple Beam Balance

What is the correct volume of the blue liquid?

• 5 ml
• 15 ml
• 20 ml
• 25 ml

Tags

NGSS.MS-PS1-2

Which is NOT a step for reading a graduated cylinder properly?

• Make sure the cylinder sits in the stand vertically.
• Be sure to hold it up to eye-level when reading.
• Read the water's volume by the bottom of the meniscus.
• Know the value of the scale for the sub-graduates.

Factor that you keep the same in an experiment

• Independent Variable

• Dependent Variable

• Controlled Variable

• Operational Definition

What are diverse ways that scientists study the natural world and propose explanations based on evidence?

• Scientific Law

• Scientific Theory

• Scientific Inquiry

• Scientific Calculator

Tags

NGSS.HS-LS2-6

NGSS.HS-PS2-5

What can be defined as:

a possible explanation for a set of observations, or an educated guess that must be "testable."

• Scientific Theory

• Communicating

• Hypothesis

• Claim

Why do scientists conduct experiments?

• To make a lot of money.

• To ask a question.

• To make a hypothesis.

• To prove a prediction is correct.

Tags

NGSS.HS-PS1-3

NGSS.HS-LS1-3

What variable in an experiment is measured? - it is also called the responding variable.

For example: measuring the amount of mold on bread

• Dependent variable

• Operational Definition

• Independent Variable

• Control Variable

Information that you gather with your senses is called

• an opinion
• a question
• a belief
• an observation

Tags

NGSS.MS-LS1-8

We see chemistry in action in our lives when we...

• Bake cookies

• Take medicine

• Wash our clothes

• All of the above

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS3-4