Question

00:52:19

Fullscreen
6th grade science unit 3 Earth's Comp and Changes posttest 25-26 DUE: Dec 19 — 24 Questions
Armstrong, Kennedee

All Questions
A

Review Summary

Finish Later
Changes to Earth's Surface
Read the passage and answer the following question(s).

Changes to Earth's Surface
Three natural processes work together to change Earth’s surface. The table shows information about these processes.

Process Description Causes Example
Weathering Rocks and minerals being broken down by chemical or physical processes Water, wind, ice, and organisms
Chemical - Rain dissolving minerals in rocks

Physical - Plant roots growing in the crack of a rock, splitting the rock

Erosion Sediment being moved from one place to another Water, wind, ice, and gravity Small pieces of rock falling down a hill
Deposition Sediment being dropped in a new location Water, wind, and ice Sediment in a stream settling at the bottom
Resize Columns
Question 17.


Drag and drop the processes next to the example they are responsible for.


Question 18.



A student is studying a rock formation. Which two questions could the student answer to determine if the rocks underwent chemical weathering?


Do the rocks experience extreme heating and cooling?


Do the rocks have small holes all over their surface?


Do the rocks have cracks where water can freeze and thaw?


Do the rocks have reddish-brown spots?


Do the rocks have cracks where plants are growing from?



Line Reader

Text Magnifier
© 2025 Renaissance Learning, Inc. All rights reserved.

Answer 1

Question 17 — Match examples to processes
- Rain dissolving minerals in rocks → Weathering (chemical weathering)
- Plant roots growing in a crack and splitting the rock → Weathering (physical weathering)
- Small pieces of rock falling down a hill → Erosion
- Sediment in a stream settling at the bottom → Deposition

Question 18 — Which two questions indicate chemical weathering?
- Do the rocks have small holes all over their surface? (Yes — dissolution/pitting is chemical.)
- Do the rocks have reddish-brown spots? (Yes — oxidation/rusting is chemical.)