Orange Deck Flashcards
Hypothesis
Suggested explanation that can be tested
Independent variable
What you change on purpose
Dependent variable
The response to the independent variable
Scientific theory
Explanation supported by scientific evidence
How are scientific law and scientific theory similar?
Both can change
In the experiment with four sunflower plants and different amounts of water, what is the control variable?
The plant that doesn’t get watered
How is sedimentary rock formed?
1. Compaction
2. Cementation
3.
Deposition
What are three examples of metamorphic rock?
Gneiss, marble, and slate
What are the similarities between rocks and minerals?
They are both
1. Solids
2. Inorganic
3. Naturally formed
4. Non-living
Name six properties that can be used to identify minerals:
1. Color
2. Streak
3. Luster
4. Hardness
5. Density
6.
Breakage pattern
Inorganic
Non-living
Mineral
Natural occurring, inorganic solid that has a crystal structure and a definite chemical composition
Geologist
A scientist who studies earths crust
Fossil
A radioactive decay of specific isotopes
Fossil record
History of life documented by all fossils
Rock strata
The layers of rock
What is meant by the term relative age?
The strata of sedimentary rock in determining their age
What is meant by the term absolute age?
Most accurate form of dating
How old is earth?
4.6 billion years
