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1st Semester Vocab.

This tool measures the mass of objects. Triple-Beam Balance
The most important lab safety rule is to... Listen to your teacher and follow all instructions.
How to properly smell anything in a lab. Wafting
This is used to grow and view microorganisms. Petri Dish
The amount of space an object takes up. Volume
A subatomic particle that has a negative charge is called a... Electron
The term used to describe when elements in 2 compounds switch places with each other. Double-Replacement
What is a way of describing chemical reactions? Chemical Equations
One indicator of ... is a solid precipitate being formed. Chemical Change
Elements in a vertical column of the periodic table that have the same number of valence electrons. Group
When the total of all forces = 0 and when the object's motion does not change. Balanced Force
The acceleration of an object by a force is proportional to the mass and acceleration of the object. Newton's 2nd Law
What is the formula to find time? T=D/S
If an acceleration graph shows a horizontal line, what does the line mean? Constant Speed
If a speed graph shows a horizontal line, what does it mean? No Motion
A ray in the Electromagnetic Spectrum that the smallest wavelength. It is produced through nuclear fusion. Gamma Rays
The resistance of an object to a change in its state of motion. Inertia
The difference between the frequency of a wave measured at its source, and as measured by an observer in relative motion. Doppler Effect
A shift in angle that occurs when a nearby object is seen against a distant backdrop from two different perspectives. Parallax
A very large group of stars and cosmic dust. Galaxy
What "powers" stars deep in the core? Nuclear Fusion
The measure of a star's luminosity. Magnitude
How bright a star really is. Absolute Magnitude
A small body of ice, rock and metal that is packeed together. It has a "tail". Comet
The dense core of a collapsed supergiant, made only of neutrons. Neutron star
A theory that states that the universe began with a huge explosion. It says that the universe will keep on expanding. Big Bang Theory
Created by: n1005061