Where does evaporation happen?

Odors must move as part of the _________ in order for people to smell them.

As cold water starts to heat up, what happens first?

__________________ models work better for different purposes.

In the diagram on the left, the molecules are

Air has mass.

The importance of _____________ measurement in science.

​Volume​ as the _______________ something takes up. Volume can be measured in two ways.

Air and odors have ​volume​ and ______________​, thus are both ​matter​.

Determine which characteristics of matter in each phase are __________________________.

Menthol, as it is ________________and cooled, can exist as solid, liquid, and gas.

Everyday examples of matter in various states.

To develop the Scientific Principle: Matter can exist as solid, liquid, or ___________ at room temperature.

Determine observable _____________________ of matter in each phase.

Gases have no definite shape or volume.

Gases can be added to an already “full” container, and can be ________________ from a container.

Everyday examples to reinforce that ______________ can be added to and subtracted from containers.

There is such a thing as “empty space,” as there is no other

explanation for the behaviors of ______________ that they have observed.

Compression (and pressure), expansion, and the particle model of all _____________________.

To connect in-class science to everyday contexts in which scientists have used their knowledge that particles are in constant _______________ to keep people safe.

This lesson provides evidence that particles of matter are in constant motion, as indicator paper detects evidence of a liquid without touching the liquid or heating the _________________.

Where is the BEST location for someone to smell odors?

Which of the following actions could prevent you from smelling an odor?

Which of the following models BEST describes how we are able to smell odors?

A model that helps you describe what you know about odors today might not help you explain what you learn about ___________ later in this unit.

Even though all of the 10,000 odors people can smell go from a source into the air to their _______________, each odor is very different.

The mass of a an object can be measured with a __________ .

Which of the following is a unit of mass?

Breathe in. Now breathe out. Breathe in one more time. Notice what happens to your chest as you ______________ in and out.

What are the three states of matter?

This state of matter does not have a definite size or shape.

Select all that are true of a solid.

Odors are matter in the __________ state.

Odors...

In the nasal cavity, _________ particles match with receptors. Receptors are like the part of a lock into which a key fits.

When a dangerous gas is odorless, then people cannot rely on their nose to warn them. People need other ways to detect ______________ gases.

To press together, to force into less space.

All _____ is made of tiny _____, called atoms and molecules.