Sand and gravel
Sand grains are smaller than gravel pieces because they can pass through small holes and pack tightly together.
See worked examples
Theo used a sieve to separate two materials. The small part went through, the big part stayed on top. What was the small part?
- Sand (right)
- Dirt
- Pebbles
Ines used a sieve to separate two materials. The small part went through, the big part stayed on top. What was the small part?
- Sand (right)
- Dirt
- Pebbles
Sam used a sieve to separate two materials. The small part went through, the big part stayed on top. What was the small part?
- Sand (right)
- Pebbles
- Dirt
Tip: Sand grains are smaller than gravel pieces because they can pass through small holes and pack tightly together.
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