Science – Constructive and Destructive Forces
The process of dropping sediment in a new location Fault Deposition Volcano Weathering Mantle Landform
“Supercontinent” on Earth millions of years ago Mantle Pangea Mass Movement Landform Fossils Erosion
Process in which soil, sand, and sediment are formed Fossils Weathering Lava Volcano Plate Mass movement
Physical Feature on Earth’s surface Fossils Landforms Fault Weathering Continental Drift Mass Movement
Shaking of ground from energy release in the crust Volcano Erosion Weathering Earthquake Plate Landform
Theory of how continents move over Earth’s surface Pangea Mass movement Earthquake Continental Drift Erosion Deposition
Place where pieces of the crust move Core Mantle Erosion Faults Magma Plate
Opening in the crust through which lava flows Earthquake Continental Drift Core Volcano Deposition Landform
Process of moving sediment from one place to another Erosion Fossils Earthquake Continental Drift Mass Movement Pangea
What is the difference between constructive and destructive forces? Constructive forces build up landforms, while destructive forces break down landforms
What does a seismograph measure? The intensity of an earthquake
What happens when rocks rub against each other in running water? They become smooth
What happens when a volcano erupts? Magma is forced out an opening in the Earth’s crust. It then becomes lava and hardens.
The center of the Earth is extremely hot. Why, then, is it solid? Because of pressure
What can happen when water freezes inside the crack of a rock? It can break the rock
How can a dam prevent flooding? By holding back and regulating the flow of water
What forces of nature can erode a rock? Wind, rain, ice
How does pollution speed up the erosion of rocks? By causing acid rain, which dissolves rock faster
What causes states to have a lot of earthquakes? They are located on a fault line
A new island formed in Iceland in 1963 A new island formed in Iceland in 1963. What was most likely the cause of this island forming? A volcano
Give an example of a constructive force. A volcano, fault lines cause a mountain to form, deposition forming a delta, etc.
Give an example of a destructive force. A volcano top blowing, landslides, mudslides, avalanches, erosion by wind, rain, or ice, etc.
Why do scientists think there was originally one supercontinent that split up into the seven continents we now have? The continents seem to fit together like a puzzle and fossils for animals from one continent have been found on other continents, suggesting they were once one.
The following pictures show the effects of wave action on a rock The following pictures show the effects of wave action on a rock. Which would be the last picture if you put the pictures in order?
What type of weathering is occurring in this picture? water weathering – water is causing erosion by moving the sand wind weathering – wind is causing erosion by moving the sand
What type of weathering is occurring in this picture? Water is wearing away the rock by flowing over it.