Scientific method
Rocks Rock!
More on rocks
Graphing
100
What is the scientific method
A set of steps scientists use to carry out experiments
100
There are _________ main types of rocks
3
100
(True/False) Erosion breaks rocks into smaller pieces
False
100
The title of this graph
Trash on the beach
200
What is the first step in the scientific method?
Ask a question
200
(True/False) A metamorphic rock is made when heat and pressure are applied to any rock.
True
200
(True/False) The rock cycle must function in a specific order
False
200
The independent variable
Available animals
300
What should you do before you begin your experiment?
Research
300
A sedimentary rock that has melted and cooled now becomes an __________ rock.
Igneous
300
Explain Radioactive decay
an unstable isotope breaks down by releasing radiation and forms a new stable isotope
300
The dependent variable
The number of mutant bacterial cells
400
After the experiment, what comes next
Gather and Analyze Data
400
This rock may have fossils
Sedimentary
400
Explain the law of superposition
The newest layers of rock are found on top, the oldest layers of rock on the bottom
400
The bacteria that had the highest amount of mutant cells
E. Coli
500
What is a constant (or controlled variable) in an experiment?
The thing that stays the same
500
An igneous rock was broken down into sediment, compacted and cemented together then pushed deeper into earth's core where it melted and cooled. What kind of rock is it now?
Igneous
500
Describe how an igneous or metamorphic rock can become sedimentary
They must first be broken down into sediment through weathering. That sediment is transported and deposited through erosion. The sediments then get compacted and cemented together
500
The highest number of minutes the experimenter used uv
Ten minutes