Intro to Phys. Sci. (ch.1)
A statement that can be tested..
What is a hypothesis
Which state of matter holds its own shape?
What is Solid
The nucleus is positive in charge because it contains.
What is Protons
What does the periodic table organize?
What is Elements
What is a scientific theory supported by?
What is Evidence
When a solid changes to a liquid, the process is called?
What is Melting
Electrons have a _______ charge
What is Negative
Which is a property of most metals?
What is Ductile
A scientific hypothesis must be ________ and falsifiable.
What is Testable
In which of the following states of matter would molecules be moving the most?
What is Gaseous
The outermost electrons in a given atom are called, what?
What is Valence Electrons
What is the maximum number of valence electrons an element may have?
What is 8
The ___________ is a process that uses evidence and logic to learn about the natural world
What is Scientific Method
What substance forms when two or more elements combine chemically?
What is Compound
Who discovered the nucleus of the atom?
What is Rutherford
Democritus believed that all natural substances were made up of:
What is Atoms
If you have observed something about the world and want to investigate it, what should you do first?
What is Construct a Hypothesis
What is an example of flammable matter?
What is Petroleum
Atoms that belong in the same element but have different numbers of neutrons are known as: ___________
What is Isotopes
How were the elements in Mendeleev’s periodic table arranged from left to right across a row?
What is Increasing Atomic Mass