Chapter 1
________ is the study of non-living things- matter and energy and how they interact.
What is physical science.
_______ is anything that has mass and takes up space. Ex. Toaster, glass of water, you!
What is matter.
_________ is the change of a substance from a liquid to a gas.
What is Evaporation.
Elements can be sorted by ___________.
What is by increasing their atomic number.
A ________ is a simplified representation of a real-world object, system, or process, used to help us understand, explain, and predict things that are too complex, small, large, or distant to study directly.
A _______ _______ occurs when a substance changes into a new substance with different properties. Ex.The Statue of Liberty is made of copper, which is orange-brown. But this copper is green because of its interactions with moist air.
What is a chemical change.
_______ is the resistance of a gas or liquid to flow.
What is Viscosity.
A _________ is matter composed of 2 or more elements in a fixed ratio. properties differ from those of individual elements.
What is a compound.
This step in the scientific method is determining the problem.
What is observation.
This is determined when Mass is divided by volume
What is Density.
______ is the state of matter that has no definite shape or volume
What is gas.
What is table salt
The three main branches of physical science are _____, _____, and _____.
What are physics, chemistry, and biology.
_______ _______ can be detected and measured without making a new substance. Ex. color, odor, texture, shape.
What are physical properties.
The process of ________ is the particles must move from being very tightly packed to being spread VERY far apart.
What is sublimation.
Name the compound H20.
What is water.
Scientists test a _________ to find the best explanation for something they observe
______ does not change with location.
What is mass.
________ ________ states that for a fixed amount of gas at constant pressure, the volume of a gas is directly proportional to the temperature
What is Charle's law.
Name the compound HNO3.
What is Nitric Acid.