Scientific Method
first step of scientific method
Determining the problem or question
Two or more DIFFERENT elements combine chemically to form this __________.
Compounds
A COMPARISON OF AN OBJECT’S MASS TO ITS VOLUME.
Density
Both plants and animals release _____________ ____________ (gas) into the air through cellular respiration (in the mitochondria)
Carbon dioxide
The _________ causes some different latitudes on Earth to get different amounts of heat.
Earth’s tilt
the outcome variable is also the _________ variable.
dependent variable
when an acid and a base neutralize each other ,this is formed....
Salt
The _______ of a substance is the amount of that substance that can dissolve in a certain amount of a given solvent.
Solubility
______________ break down dead organisms in the carbon cycle.
Decomposers
A _________ is how far light can travel in a year.
light-year
tested variable is also called ________.
independent variable
Rust is formed when iron (Fe) combines with oxygen (O) in the atmosphere to form iron oxide (FeO). How would you classify iron oxide?
Compound
The smallest part of an element that still retains properties of that element
Atom
This human activity disrupts the carbon cycle by reducing the number of trees that absorb carbon dioxide from the atmosphere.
Deforestation
The Sun rotates slower at the _______ & faster at the _________.
Poles
Equator
the variable that a scientist changes on purpose during an experiment.
the independent variable
Two or more substances combine physically (in the same place), but not chemically bonded together to form this .
Mixtures
If you are constructing a model of a neutral carbon atom where should you place the electrons in the model?
outside of the nucleus
These organisms perform photosynthesis to make their own food from sunlight, carbon dioxide, and water.
Autotrophs
A sudden release of energy due to a disturbance in the magnetic field.
Solar Flares
The factor that is being observed or measured.
Dependent variable
Substances from 0 to 6 on the pH scale, sour taste and reacts with metals.
Acids
What is the charge of the protons of an atom.
Positive
In this symbiotic relationships one organism benefits while the other is unaffected.
commensalism
An astronomical unit (AU) is the average distance from _____________ to ___________________.
Earth to Sun