WorksheetsSCI EXAM REVIEW
Total questions: 45
Worksheet time: 25mins
Process that uses observations to gain knowledge about events in nature
Science
Experiment
Theory
A possible explanation for a set of observations or answer to a scientific question.
Kelvin
Theory
Hypothesis
A standard for comparison in an experiment
Constant
Dependent Variable
Independent Variable
An explanation that is based on experiments
Scientific Law
Scientific Theory
Scientific Method
A statement that describes what scientists expect to happen every time under a particular set of conditions
Scientific Law
Scientific Theory
Scientific Method
The amount of space occupied by an object
volume
Mass
Kelvin
The SI base unit for temperature
Kelvin
Degrees
Celsius
Before designing and carrying out an experiment, one should find out what is already known about the topic by
(a)
Scientists can communicate their results at scientific meetings, in scientific journals by doing what?
( all lower case)
(a)
To reveal trends in data, the data should be presented how?
On Tables
On Graphs
On papers
Online
The part of an experiment in which all conditions are kept the same is the
Kelvin
Constant
Independent Variable
Dependent Variable
The steps commonly used by scientists in gathering information to test hypotheses and solve problems are called what?
(There are multiple steps)
Constant
Scientific Method
Scientific Law
Scientific Theory
In a scientific experiment, the one variable that is purposely changed to test a hypothesis is called the
Graph
Independent Variable
Dependent Variable
Constant
What is the basic metric unit of liquid volume?
Mass
Ounce
Liter
Kelvin
For ease of understanding, scientists report measurements using what?
The Law of Conservation Of Mass
The Metric System
The Scientific Method
Visual display of information that SCIENTISTS use-
Chart
Graph
Table
In a line graph what axis is vertical
X axis
Y axis
What does the symbol km mean
(lower case)
(a)
(moving on to the MATTER unit)
YES
No thanks
NO
Okay :(
One example of a physical change is?
Digestion of food
Boiling an egg
Dissolving water
Burning paper
One example of a chemical change is
chopping wood
Digestion of food
Cutting Paper
The energy of matter in motion is called
Kinetic Theory
Metric System
Substances that cannot be broken down chemically
Ions
Matter
Elements
Atoms
Measurement of how much matter an object contains
space
Kelvin
Mass
Volume
Elements are composed of very small particles called-
Electrons
Ions
Atoms
Protons
Anything that has mass and takes up space is called what?
Electricity
Mass
Matter
Kinetic Energy
How do liquid, Ice, and water vapor differ
(a)
material made up of two or more different chemical substances
Substance
Mixture
Atom
A substance whose shape can easily change
Fluid
Gas
Solid
A solid has what? Choose all that apply.
Indefinite volume
Definite Volume
Definite Shape
Indefinite shape
resistance of a liquid flowing
Stabilism
Heat
Viscosity
Pressure
What is vaporazation?
When a Solid Becomes A liquid
When Liquid Becomes Gas
When Gas Becomes A Liquid
When Gas Becomes A Solid
The Opposite of Vaporization Is?
Precipitation
Condensation
Evaporation
How did Mendeleev aranage the first periodic table?
decrease in atomic number
Increase in atomic mass
decrease in atomic mass
increase in atomic number
How did the chemists change Mendeleevs periodic arrangement?
They used atomic number
They still used atomic mass
They used a decrease in atomic number
They used an increase in atomic mass
Most metals are not_____at room temp.
Solid
Liquid
Gas
In the peroidic table where are the most reactive metals found?
Group 3
Group 2
Group 1
Group 4
Om the periodic table which group has the most elements?
The Metals
The NonMetals
The Metalloids
In an atom the number of protons equals the number of what
Mass
Protons
Ions
Atoms
What information on the periodic table indicate the number of protons in an atom?
The Elements number of protons
The Elements Atomic Number
The Elements Atomic Mass
The Elements Number of electrons
What are the most common alkali earth metals?
Magnesium
Iron
Steel
Calcium
Which group of elements share characteristics with both metals and nonmetals
Transition
Metalloids
Alkali
Elements that do not ordinarily form compounds
Alkali Earth Metals
Noble Gasses
Transition elements
Metalloids
Which Particles in Atoms have a negative electric charge
Electrons
Protons
Ions
What's a Halogen?
Anything that has a negative charge
Any part of the six nonmetallic elements.
Anything with a positive
