Vocabulary
What is an observation?
When we notice something
What does it mean to respect our materials?
It means not breaking, throwing, or using them inappropriately
Where does the sand at the beach come from?
From water rubbing against rocks on the land
Is there a rock size smaller than sand?
Yes- silt is smaller than sand
Separate means to take away
What is sand?
Small pieces of rock
What happens when rocks rub together?
They make sand (smaller pieces of rock)
Where do all three of the rocks we observed come from?
Volcanoes!
Is there a rock size smaller than silt?
Yes- clay is smaller than silt.
What does it mean when something settles?
It sinks to the bottom
What is weathering?
When rocks break don into smaller pieces (sand)
What happens when we place rocks in water?
It depends on the rock. It could dissolve in to sand (Tuff), make just a little sand (Basalt), or make bubbles (Scoria).
Name 1 of the volcanic rocks we observed
Basalt, Tuff, or Scoria
What are properties?
Properties are the way something looks, feels, or is
How are river rocks the same?
River rocks can have the same color, size, shape, texture, or pattern (properties)
Why do some rocks bubble when placed in water?
There is air trapped in the holes of the rock
What is gravel?
Gravel is a size of rock that is smaller than a pebble but larger than sand.
How can rocks be separated by size?
We can use a screen to separate rocks by their size
Place these sizes of rock in order from smallest to largest: Pebbles, Sand, Clay, Silt, and Gravel.
Clay, Silt, Sand, Gravel, Pebbles