Term
| What is the definition of a Hypothesis? |
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Definition
| A proposed or predicted testable explanation about how an independent variable affects a dependent variable |
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Term
| What is the definition of the independent variable? |
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Definition
| A variable that is modified or manipulated during an experiment |
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Term
| What is the definition of the dependent variable? |
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Definition
| A variable that is the result from experimentation. |
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Term
| What format must be used to properly state a hypothesis? |
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Definition
| If (fill in independent variable), then (fill in dependent variable). |
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Term
| Why can't scientists change more than one variable at a time when experimenting? |
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Definition
| Because if more than one variable is changed then it is not possible to determine which variable caused the result. |
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Term
| Why must scientists must use specific descriptions with numbers and units or with comparisons? |
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Definition
| Other descriptions are opinions or unsupported by definite facts. |
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Term
| What are convection currents? |
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Definition
| These are circular movements in a liquid. |
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Term
| What do convection currents have to do with tectonic plates? |
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Definition
| Convection currents of the liquid rock/magma in the mantle of the Earth drive the movement of tectonic plates. |
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Term
| Describe a convergent boundary |
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Definition
| tectonic plates moving toward each other |
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Term
| Describe a divergent boundary |
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Definition
| tectonic plates moving away from each other |
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Term
| Describe a transform boundary |
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Definition
| tectonic plates that slide past each other |
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Term
| Which is thicker: continental or oceanic crust |
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Definition
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Term
| Which is denser: continental or oceanic crust |
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Definition
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Term
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Definition
| This is the name of the supercontinent that was made up of all the continents connected together - existed millions of years ago. |
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Term
| What type of waves do scientists use to learn about the interior of the Earth? |
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Definition
| Seismic waves (that travel through the rock) |
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Term
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Definition
| The Earth's crust and the very upper part of the mantle that makes up tectonic plates |
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Term
| List three examples of evidence for the Theory of Continental Drift. |
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Definition
Any of these are acceptable:
1. Similarities of fossils found on the different continental coasts
2. The close fit of continental coastlines
3. The matching of glacial grooves on different continents
4. Similar rock and mineral deposits on different continents
5. Similar mountain formations on different continents |
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Term
| What is caused by the movement of tectonic plates? |
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Definition
| Both earthquakes and volcanoes are caused by the movement of tectonic plates. |
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Term
| Which type of plate boundary is most likely to result in an earthquake? |
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Definition
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Term
| What happens when an oceanic plate collides with a continental plate? |
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Definition
| Subduction of the oceanic plate under the continental plate |
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Term
| Why does an oceanic plate get subducted under a continental plate? |
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Definition
| This is because the oceanic plate is denser and therefore sinks under the continental plate. |
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Term
| A properly stated problem must be in the form of a .... |
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Definition
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Term
| both the hypothesis and the problem must be ... |
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Definition
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Term
| Give an example of a properly stated problem. |
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Definition
| (any answer that is in the form of a question and can be tested is acceptable) |
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Term
| What happens if two continental plates move toward each other at a convergent boundary? |
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Definition
| There will be lift - Mountains will form because both continental plates are of the same density and will push up on each other when they crash. |
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