The Nature of Science
When you use your five senses to gather information about an object, you are making an:
A) Inference
B) Observation
C) Opinion
D) Hypothesis
B) Observation
The Earth completes one full rotation on its axis every:
A) 365 days
B) 24 hours
C) 1 month
D) 12 hours
B) 24 hours
This process happens when liquid water is heated by the sun and turns into water vapor.
A) Condensation
B) Evaporation
C) Precipitation
D) Runoff
B) Evaporation
Which state of matter has a definite shape and a definite volume?
A) Liquid
B) Gas
C) Solid
D) Plasma
C) Solid
This organ acts as the "control center" for the entire body.
A) Heart
B) Brain
C) Stomach
D) Liver
B) Brain
A logical explanation or "guess" based on your observations is called an:
A) Inference
B) Experiment
C) Variable
D) Evidence
A) Inference
The Earth’s revolution around the sun takes approximately:
A) 1 day
B) 1 month
C) 1 year
D) 10 years
C) 1 year
When water vapor cools down and turns back into liquid droplets to form clouds, it is called:
A) Evaporation
B) Transpiration
C) Condensation
D) Freezing
C) Condensation
When an ice cube melts into liquid water, it has undergone a:
A) Chemical change
B) Physical change
C) Atomic change
D) Permanent change
B) Physical change
These organs are responsible for taking in oxygen and releasing carbon dioxide.
A) Kidneys
B) Lungs
C) Intestines
D) Pancreas
B) Lungs
In a "fair test," how many variables should a scientist change at one time?
A) Zero
B) One
C) Three
D) As many as possible
B) One
Which planet is known as the "Gas Giant" and is the largest in our solar system?
A) Mars
B) Saturn
C) Jupiter
D) Neptune
C) Jupiter
Rain, snow, sleet, and hail are all forms of:
A) Humidity
B) Condensation
C) Precipitation
D) Collection
C) Precipitation
Which of the following is evidence of a chemical change?
A) Breaking a pencil in half
B) Water boiling
C) A rust spot forming on a bike
D) Mixing salt and pepper
C) A rust spot forming on a bike
This muscular organ pumps blood throughout the body.
A) Small Intestine
B) Heart
C) Bladder
D) Skin
B) Heart
To make sure their results are accurate, scientists should do this many times:
A) Read a book
B) Conduct multiple trials
C) Ask a friend
D) Change the hypothesis
B) Conduct multiple trials
Our solar system is located in this spiral-shaped galaxy:
A) Andromeda
B) The Milky Way
C) Starburst
D) The Sombrero Galaxy
B) The Milky Way
This instrument is used to measure air pressure.
A) Thermometer
B) Anemometer
C) Barometer
D) Hygrometer
C) Barometer
The amount of matter in an object is called its:
A) Weight
B) Volume
C) Mass
D) Density
C) Mass
This is the largest organ of the human body and protects us from germs.
A) Large Intestine
B) Skin
C) Liver
D) Brain
B) Skin
This is the part of the experiment that stays the same to make sure the test is fair.
A) Dependent variable
B) Independent variable
C) Control group (or constant)
D) Conclusion
C) Control group (or constant)
Why does the Sun appear to be the brightest star in our sky?
A) It is the largest star in the universe
B) It is much closer to Earth than other stars
C) It is made of different gas than other stars
D) It doesn't move
B) It is much closer to Earth than other stars
Florida’s weather is often very humid. Humidity is the amount of what in the air?
A) Oxygen
B) Water vapor
C) Salt
D) Wind
B) Water vapor
A mixture where one substance is dissolved perfectly into another (like sugar in water) is a:
A) Solvent
B) Solution
C) Suspension
D) Solid
B) Solution
These organs filter waste from the blood and produce urine.
A) Kidneys
B) Lungs
C) Ovaries
D) Gallbladder
A) Kidneys