Ch 1 Matter, 7th grade

The ability to do work or cause change describes

A SUBSTANCE is a single kind of matter that has a specific compostition.

How do liquid water, ice, and water vapor differ from each other?

Density of corn syrup is 1.33 g/mL & veggie oil is .91 g/mL, which liquid will float on water?

The volume of an irregular object can be measured by

The smallest particle of an element is called a(n) ATOM.

The metric system of measurement is based on the number

A(n)  ___________ is formed when 2 or more substances are evenly mixed.

One example of a physical change is

Being able to identify good sources of scientific info & apply the knowledge is part of having

How does the density of liquid water compare with the density of ice?

One example of a chemical change is

A substance that undergoes a CHEMICAL change is still the same substance after the change.

Soil, a salad, and sugar water are all examples of

To find the MASS of a rectangular object, you multiply the object's length, width, & height.

Hardness, texture, color & freezing point are examples of_________ properties of matter.

How did the temperature change in reaction A differ from that in reaction B?

A change that produces one or more new substances is called a PHYSICAL change.

What holds atoms together in a molecule?

A(n) ________________ is a group of two or more atoms that are held together by chemical bonds.

The fact that matter is not created or destroyed in any chemical or physical change is the

Anything that has mass and takes up space is called

A volume of 25 mL is the same as a volume of __________ cubic centimeters.