Scientific Method
What is the first step of the Scientific Method?
Make an observation and ask a question.
What is an independent variable?
“THE CAUSE” Must be measurable or categorized and manipulated by the scientist. This is the factor that the scientist changes directly.
1m= _______km
0.001
What unit do you measure the weight of a frog in?
g (grams)
Were the Earth and Solar System formed around the same time
Yes
What is the second step of the Scientific Method?
Form a hypothesis, or testable explanation.
What is a controlled variable?
Every factor except the IV must remain the same in an experiment to be sure that the IV is causing the resulting change in the DV. Experiments that have many constants are said to be “wellcontrolled.” Constants stay the same. Be specific when referring to constants. Water is not an appropriate constant, while the same source of tap water is an appropriate constant.
27g = ______ mg
27,000.
What unit do you measure water in a graduated cylinder?
mL (milliliters)
When was the Earth formed
4.5 billion years ago
What is the third step of the Scientific Method?
Test the prediction.
What was one thing wrong with the airplane activity's experimental design?
No repetition, no controlled variables, no written procedure, more than 1 independent variable
18.5cm=_______m
0.185
What tool do you use to measure door frames or walls?
Meter sticks
Explain radiometric dating as a piece of evidence for Earth and Solar System formation.
Measurements of the radioactive decay of unstable isotopes of elements (such as carbon, uranium, potassium, and hafnium) contained in rocks.
What does it tell us? Absolute age—the date at which a material formed or a process occurred
What is the fourth step of the Scientific Method?
Gather and analyze data.
What was one thing wrong with the fill the cup activity's experimental design?
The title or question was too vague, fill was a bad word to use and test for
13.4 cm (<,>,=) 13.3mm
>
Why is it important to use metric system measurements in science?
It's universal so all scientists can understand other's research. Helps with sharing information about space.
Why is there little evidence of Earth's formation on Earth?
Because of ongoing geological processes—such as plate tectonics and erosion—no record on Earth remains of its formation and early history.
What is the fifth step of the Scientific Method?
Draw conclusions and share.
Construct a graph using this hypothesis:
Runner speed decreases as the size of the hill increases.
Look to Teacher Board
17,000 m (>,<,=) 17 km
=
How can I calculate the volume of an object without using the equation l*w*h?
Water displacement
Name any other piece of evidence used to explain Earth and Solar System formation.
Visual observation, Seismic and gravitational studies, isotopic analysis, chemical analysis... and more