Science Tools
What does an electronic scale measure?
What is the first step in the scientific method?
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What is a qualitative observation?
Something you describe with your 5 senses.
24 hours
What are the 2 sides of a magnet called?
North and south pole
What is a hypothesis?
An educated guess with an explanation of why
What is a quantitative observation?
observations with numbers or measurements
Why do we see day and night?
Earth's rotation
What is potential energy?
The stored energy in an object based on it's position
What does volume mean?
What is an independent variable?
The variable you change on purpose
What is an inference?
An educated guess based on an observation.
Why do we have different seasons and times of year?
Earth's orbit/revolution around the sun
A student gives 3 plants different amounts of soil to see how much they grow. What is her independent and dependent variable?
IV: Amount of soil
DV: Plant growth
Liters
The variable you measure on purpose
What type of trend is this?
Positive trend.
Rises EARLY in the EAST.
Sets in the West.
Identify the IV and DV for this experiment:
"How does the type of gas affect how fast a car drives?"
IV: type of gas
DV: how fast a car drives
How do you calculate volume of a solid object using a graduated cylinder?
Displacement method!
Why do scientists have control variables?
To make the experiment fair so you can see how the independent variable caused changes in your results.
X-axis: Independent variable
Y-axis: Dependent Variable
What makes something a planet?
1. Orbits a star
2. round shape
3. clears neighborhood
What would happen if the earth revolved around the sun but never rotated?