Pebbles, Sand and Silt
Investigation 1
Scientist
1.1 Three Rocks
Vocabulary
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How are rocks different? What happens when rocks are rubbed together?
1.2 Washing three rocks
Vocabulary
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What happens when rocks are washed?
1.3 First sorting
Vocabulary
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How are some rocks the same?
1.4 Sorting Games
Vocabulary
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How many ways can rocks be sorted?
1.5 Start a Rock Collections
Vocabulary
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What rocks can we find around us?
Conclusion:
What did you learn from today’s experiment?
Exploring Rocks pages 3-7
Vocabulary
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How are rocks different?
Pebbles, Sand and Silt
Investigation 2
Scientist
2.1 Screening River Rocks
Vocabulary
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How can rocks be sorted by size?
2.2 River Rocks by Size
Vocabulary
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How else can river rocks be sorted by size?
2.3 Sand and Silt
Vocabulary
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Is there an earth material smaller than sand?
2.4 Exploring Clay
Vocabulary
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Is there an earth material smaller than silt?
The story of Sand
page 10-13
Vocabulary
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Where does sand come from?
Conclusion:
What did you learn from today’s experiment?
Pebbles, Sand and Silt
Investigation III
Scientist
3.1 ROCKS IN USE
Vocabulary
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How do people use earth material?
3.2 Looking at Sandpaper
Vocabulary
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What does sand do for sandpaper?
3.3 Sand Sculptures
Vocabulary
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How else can sand be used?
3.4 Clay Beads
Vocabulary
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What can be made with clay?
3.5 Making Bricks
Vocabulary
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How are bricks made?
Conclusion:
What did you learn from today’s experiment?
Rocks Move
pages 14-15
Vocabulary
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Can you tell what moves the rock?
The Story of Sand
Focus Question:
Where does sand come from?
How does sand get to be so small?
Hypothesis/Prediction:
Ithink_____________________________________________________________
because____________________________________________________________
Read Story
And collect data
Claims
I claim sand started as a large rock,
bolder or part of a mountain and then
after a long time the rock was broken
down into smaller and smaller pieces.
East Bay Educational Collaborative
www.ebecri.org/custom/kitspecificresources.html
Evidence
I know this because:
 Boulders break apart from
mountains
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Boulders break apart as they
travel and slam into each other

Boulders break into cobbles,
pebbles and then gravel

Pebbles and gravel travel
through streams and rivers into
the ocean

Waves break the pebbles and
gravel into sand
Pebbles, Sand and Silt
Thanks to Susanna parsons for this notebook
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