The first step in the scientific method. This is when the scientist studies the world the around him by using his senses and other tools.
What is Observation
100
This variable is kept the same for all groups in an experiment.
What is a constant?
100
The attactions between two molecules of the same substance. Ex. water sticking to water
What is cohesion
100
The smallest basic unit if matter.
What is an atom?
100
This molecule is made up of carbon, hydrogen, and oxygen and they include sugars and starches. They release energy.
What are carbohydrates?
200
An educated guess that must be testable.
What is Hypothesis
200
This variable is measured by scientist at the end of an experiment.
What is dependent variable?
200
A scale that measures the acidity of a substance with a range of 0 to 14.
What is the pH scale
200
An atom that has gained or lost one or more electron.
What is a ion?
200
What three molecules are found in carbohydrates, lipids, and proteins?
What are carbon, hydrogen, and oxygen?
300
Charts and graphs are usually created in this step of the scientific method.
What is Data Analysis
300
This variable is manipulated by the scientist at the beginning an experiment. It can also be called the cause or input.
What is independent variable
300
On a pH scale number 7 indicates this.
What is a nuetral substance?
300
This molecule is made up of carbon, hydrogen, and oxygen and store energy. Some examples are fats and oils.
What are lipids?
400
At the end of an experiment, a scientist was not able to draw any conclusions about the independent variable. He should probably....
What is retest
400
The higher the temperature of the water, the faster an egg will boil. The dependent variable is this scenario is....
What is the faster an egg will boil or the time it take the egg to boil.
400
This is a mixture of substances that is the same throughout.
What is a Solution?
400
This type of bond is formed with atoms transfer electrons.
What is an ionic bond?
400
Proteins are made up of carbon, hydrogen, oxygen, and what other element?
What is nitrogen?
500
After doing making observations about texting while driving, what should the scientist do next.
What is form a hypothesis?
500
An investigation was done with an electromagnetic system made from a battery and wire wrapped around a nail. Different sizes of nails were used. The number of paper clips the electromagnet could pick up was measured. The independent variable in this experiment is...
What is Different sizes of nails were used.
500
When two or more atoms are held together by a covalent bond, it forms this.
What is a molecule?
500
A long molecule with many similar or identical building blocks linked by a covalent bond.