Weeks 18 and 19 of school we learned about sedimentary rocks using Layers of Learning, year 3 unit 12.

We watched YouTube videos about sedimentary rocks.

We let a piece of chalk soak in water and checked its weight every 5 minutes. In 15 minutes, it gained 2 grams. This showed us that some rocks can absorb water.

We mixed sand with epsom salts dissolved in water and left it in the window that gets the most sun for a week to turn it into a rock (we weren’t sure it would work because we were in the middle of several very cloudy days that week).

It worked!

We demonstrated how layers of sediment separate.

We dissolved some chalk in vinegar.

We identified sedimentary rocks.

We learned how a surface coal mine works.

Week 17 of school we did a creative kids unit using Layers of Learning, year 3 unit 11. That was our last one week unit of the school year.

We made a sugar syrup and cooled one container of it in the freezer and one on the counter to show different types of crystals.

We watched YouTube videos on rocks.

We made rock candy by putting together various things representing minerals and then covering them in chocolate. They turned out yummy.

We sorted igneous rocks.

We learned about how igneous rocks form.

We made magma goo and extruded it through our fingers.