6th Grade Earth Science Semester 1 Exam Review
Exam will include Chapters 1, 2, 7, 8, 9 10.1, 10.2, 13.1, 14
Answer the following to review for your semester 1 exam
Ch. 1-2 Nature of Science
1) Why do scientists conduct experiments?
2) What is a theory?
3) What is the difference between replication and repetition?
4) What units of measurement are used in science?
5) What process occurs after collecting data?
Ch. 8 Earth’s History
6) How are fossils formed? 3 ways
7) Explain geologic time.
8) What are eras of geologic time?
9) In what era did life first appeared on Earth?
10)Explain the Law of Superposition.
Ch. 7 Earth’s Structures
11)What are the layers of the earth?
12)Explain weathering, deposition, erosion, compacting, and cementation.
13)Explain the Rock Cycle.
14)What are the characteristics of Karst topography?
Ch. 9 Plate Tectonics
15)Explain convection currents.
16)What is the Theory of Plate Tectonics?
17)What are the three kinds of boundaries?
18)What are the three forms of heat transfer?
Ch. 10 Volcanoes 10.1-10-2
19) What are the causes of pyroclastic or quiet eruptions?
20)Where are you likely to find volcanoes?
21)What causes eruptions?
Ch. 14 Weathering/Erosion
22) How do continental and valley glaciers differ?
23)Why are floodplains important in agriculture?
24)How does abrasion affect Florida’s coastline?
Answers
1-Why do scientists conduct experiments?*to find out the answer to a question
2- What is a theory?*a well-tested explanation based and confirmed by facts
What is the difference between replication and repetition?*repetition is an experiment done by one
scientist while replication is the same experiment performed by others
What units of measurement are used in science?*metric
What process occurs after collecting data?*drawing conclusions
How are fossils formed? 3 ways*cast/mold, changed into minerals, preserved by ice or amber
Explain geologic time* The time since the Earth was formed
What are eras of geologic time?*PreCambrian, paleozoic, mesozoic, cenozoic
In what era did life first appeared on Earth?*Pre-Cambrian
Explain the Law of Superposition*The layer on top is the youngest layer
What are the layers of the earth?Inner Core, outer core, mantle, crust
Explain weathering, deposition, erosion, compacting, and cementation*breaking away of rocks, carrying
away of rocks, settling of rocks, rocks squeezed together, rocks stick to each other
Explain the Rock Cycle* Rocks change from one type to another depending on the forces exerted on them
What are the characteristics of Karst topography?*limestone undergoing chemical weathering due to
carbonic acid, sinkholes likely
Explain convection currents.*Convection currents occurs when liquid and gases change densities du to
heat
What is the Theory of Plate Tectonics?* the outer rigid layer of the earth (the lithosphere) is divided into
a couple of dozen "plates" that move around across the earth's surface relative to each other
What are the three kinds of boundaries?*transform, divergent, convergent
What are the three forms of heat transfer?*conduction, convection, radiation
What are the causes of pyroclastic or quiet eruptions?*silica content of the magma
Where are you likely to find volcanoes?* along subduction zones, mid-ocean ridges, and hot spots
What causes eruptions?*Gases trapped in the magma
How do continental and valley glaciers differ?*continental glacier cover continents and form easier than
valley glaciers
Why are floodplains important in agriculture*the settling of sediment caused by floods bring needed
mineral to the soil which makes more fertile
How does abrasion affect Florida’s coastline?*They change the shape due to exposure to the wind