Activity 01
Stations Rotation: Weathering Processes
Prepare four stations: abrasion (sandpaper on rocks), ice wedging (water in clay cracks frozen overnight), chemical reaction (vinegar on chalk), and wind erosion (hairdryer with sand). Groups rotate every 10 minutes, sketch changes, and discuss evidence. End with a class share-out.
Analyze how water, wind, and ice can break down rocks over time.
Facilitation TipDuring Station Rotation: Weathering Processes, set a timer for 8 minutes per station and circulate with guiding questions to keep groups focused on the agent at each spot.
What to look forPresent students with pictures of different rock formations or surfaces. Ask them to identify one way weathering might be affecting each one and whether it appears to be physical or chemical weathering, writing their answers on a whiteboard or paper.
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Activity 02
Rock Abrasion Challenge: Pairs
Give pairs soft rocks or clay models and tools like sandpaper or pebbles. Students race to abrade surfaces while timing and measuring mass loss. Compare results and predict long-term effects on a mountain drawing.
Differentiate between physical and chemical weathering processes.
What to look forGive students a scenario: 'Imagine a large boulder sits on a mountaintop for 10,000 years. Describe two ways weathering could change this boulder and the surrounding area.' Students write their predictions on an index card.
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Activity 03
Gallery Walk: Whole Class
Display photos of landforms. Students in pairs predict weathering changes over 1,000 years, draw before-and-after sketches, and post on walls. Class walks gallery, votes on most likely changes, and explains using evidence.
Predict how weathering might change a specific landform over thousands of years.
What to look forFacilitate a class discussion using the prompt: 'If you were a sculptor creating a statue to last for thousands of years, what kind of rock would you choose and why, considering how weathering might affect it?' Guide students to connect rock properties to weathering resistance.
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Activity 04
Dissolution Observation: Individual
Students drop chalk pieces in water, vinegar, and air-control cups. Observe daily for a week, measure changes with rulers, and journal how chemical weathering acts slowly compared to physical methods.
Analyze how water, wind, and ice can break down rocks over time.
What to look forPresent students with pictures of different rock formations or surfaces. Ask them to identify one way weathering might be affecting each one and whether it appears to be physical or chemical weathering, writing their answers on a whiteboard or paper.
RememberUnderstandAnalyzeSocial AwarenessSelf-AwarenessDecision-Making
Generate Complete Lesson→A few notes on teaching this unit
Experienced teachers begin with visible, hands-on activities and move to abstract thinking through repeated observation and discussion. Avoid rushing to definitions; let students name processes after they see patterns. Research shows that concrete experiences before vocabulary build stronger mental models of slow change.
Students will describe how different forces break down rocks, use evidence to explain physical versus chemical weathering, and predict landform changes over long periods. Clear talk and written work show they grasp gradual processes and agents of weathering.
Watch Out for These Misconceptions
During Station Rotation: Weathering Processes, watch for students who say weathering happens fast because they link it to storms. Redirect by pointing to the gradual marks on the rocks they handled and asking them to time how long the simulation runs.
Use the timed rotations to emphasize that each station shows a tiny change over a set time. Ask students to imagine how many cycles would be needed to shape a real cliff, making slow change visible through repeated exposure.
During Station Rotation: Weathering Processes, listen for statements that only water causes weathering. Use the wind and ice stations as evidence to broaden their view.
After students visit the wind and ice stations, bring the group back together and ask each station to share one change they saw. Record these agents on a class chart so students see multiple contributors at once.
During Rock Abrasion Challenge: Pairs, listen for students who call both wind and water abrasion the same process because they see rubbing. Ask them to compare the dry sandpaper to the wet paper to notice differences in how each breaks the rock.
Methods used in this brief