Square vs Cube
Today we're going to look at shapes. Some shapes are flat, and some are solid. Let's compare two!
On the left is a square. A square is flat — we can draw it on paper.
Let's count its sides: one, two, three, four. A square has four straight sides.
It also has four corners — the pointy spots where the sides meet.
Look at this cube. A cube is solid — like a building block we can hold in our hand.
A cube has flat faces. Each face looks like a little square!
And a cube has corners too, where its faces meet.
The square is flat. The cube takes up space — it's solid.
Both shapes have straight edges and pointy corners. But a cube is built from many squares!
Flat shapes are 2D. Solid shapes are 3D. Now you can spot them all around you!