Weathering
This process breaks rock into smaller pieces without changing what the rock is made of.
Mechanical weathering
This process moves sediment from one place to another.
Erosion
This landform can form where a river deposits sediment as it enters a larger body of water
Delta
Heat transfer through direct contact.
Conduction
A metal spoon becomes hot while sitting in soup
Conduction
Water freezes in a crack, expands, and breaks the rock. Name the type of weathering.
Mechanical weathering / ice wedging
This occurs when moving water, wind, or ice drops the sediment it was carrying.
Deposition
Florida sinkholes often form because acidic water reacts with this type of rock.
Limestone
Heat transfer through electromagnetic waves.
Radiation
You feel heat from a campfire without touching it.
Radiation
Acidic water dissolves minerals in limestone. What type of weathering is occurring?
Chemical weathering
A river carries sand downstream. Which Earth-surface process is happening?
Erosion
Sand carried along a coastline is dropped and begins building up. Which process is shaping the landform?
Deposition
Heat transfer caused by the movement of liquids or gases.
Convection
Warm water rises while cooler water sinks in a pot.
Convection
A rock containing iron reacts with oxygen and develops a reddish color. Name the process and weathering type.
Oxidation; chemical weathering
Explain the difference between erosion and deposition.
Erosion moves sediment; deposition drops sediment.
Explain why sinkholes are common in parts of Florida.
Answer: Water chemically weathers/dissolves underground limestone, creating spaces that can collapse.
Why can the Sun warm Earth even though space has almost no matter?
Radiation can travel through space as electromagnetic waves.
Bare feet touch hot pavement and quickly become warm. Identify the heat transfer and explain why.
Conduction because thermal energy moves through direct contact.
Plant roots grow into a crack and slowly force a rock apart. Is this mechanical or chemical weathering? Explain.
Mechanical; the rock breaks physically but its composition does not change.
Describe how weathering, erosion, and deposition can work together to change Earth's surface.
Weathering breaks rock, erosion transports the sediment, and deposition drops it somewhere else.
A river slows as it reaches the ocean. Predict what will happen to the sediment and the landform that may develop.
Sediment will be deposited and may build a delta.
Compare conduction, convection, and radiation.
Conduction = direct contact; convection = movement of fluids; radiation = electromagnetic waves.
The Sun heats the surface of a lake, water circulates, and a swimmer touches a warm rock. Identify the heat-transfer type in each part.
Sun→lake radiation; circulating water convection; swimmer→rock conduction.