Changes to Earth's Surface
Grade 2 - Science - Building Confidence
Earth event: a landslide moves soil down a hill after heavy rain. Is this a fast or slow surface change?
- no surface change
- fast change
- slow change
What most directly causes this surface change: a flood spreads mud across a field?
- flood water
- the name of the town
- a paper map
Which observation is evidence for the change in "a flood spreads mud across a field"?
- the sand is a favorite color
- water covers the field in one storm
- the hill has a pretty view
Which solution could help with this surface-change problem: a landslide moves soil down a hill after heavy rain?
- ignore all evidence
- make the wind stronger
- keep people away from the slide area
Which sequence best represents a surface change investigation?
- observe the surface -> identify the cause -> plan a response
- predict first -> refuse data -> change the question
- erase the evidence -> copy the answer -> stop
Earth event: a river carries sand from one bank to another. Is this a fast or slow surface change?
- only a weather report
- fast change
- slow change
What most directly causes this surface change: waves break pieces from a sandy shore?
- the color of the soil
- ocean waves
- the name of the town
Which observation is evidence for the change in "a landslide moves soil down a hill after heavy rain"?
- the hill has a pretty view
- soil shifts suddenly after the storm
- the student guessed first
Which solution could help with this surface-change problem: waves break pieces from a sandy shore?
- add plants or barriers that reduce erosion
- make the wind stronger
- remove every observation
Which sequence best represents a surface change investigation?
- observe the surface -> identify the cause -> plan a response
- name the map -> ignore the land -> finish
- predict first -> refuse data -> change the question