20 questions
What are the steps of the scientific method?
Observation, question, and hypothesis.
Observation, question, and hypothesis analysis and graphing.
hypothesis and observation
only observation
What is the independent variable
something you can change.
something that stays the same
something that never changes
a variable
What is the dependent variable?
A dependent variable is something that will change while the independent variable wont.
something that depends on the experiment
something that you depend on
a variable that changes within the experiment
What is a hypothesis?
A hypothesis is a guess or prediction you have before you do something like a scientific experiment.
a question
a statement
a very serious argument
What is an atom?
what things are made up of
An atom is the smallest particle of an element
a source of energy
What is an element?
a substance that can be broken down
an element on the periodic table
An element is a substance that cannot be broken down into other substances.
Matter is anything that has ___________ and takes up _____________.
weight and mass
weight and space
mass and space
volume and space
Define the term soluble.
Can dissolve in water
Cannot dissolve in water
Partially dissolves in water
Define the term insoluble.
Can dissolve in water.
Cannot dissolve in water.
Partially dissolves in water.
What are alkaline earth metals?
not reactive can be found in nature
brittle very rare
Alkaline earth metals are very reactive and not found in nature.
What are transition metals?
do not conduct heat
conducts electricity
They conduct electricity and heat.
What are halogens?
non reactive metals
elements used to form structured compounds
Halogens are reactive nonmetal elements that can form strongly acidic compounds.
which are elements of the periodic table
carbon
helium
chlorine
K (Potassium)
name three things composed of matter?
hair
car
microphone
grass