A long thin mark made with a writing tool is called a line. The line can include:
- A straight line: a line that is marked in one direction
- Curve: a gradually bending line
- Zigzag: a line consisting of sharp left and right turns or angles. The letter Z is a zigzag.
- Wavy: a line consisting of curves
- Dotted line: a line made of very small spots
- Vertical: a line going from down to up or vice versa. The trees are vertical.
- Horizontal: a straight line; parallel to the ground
- Spiral: a line continuously circling around a central point
- Circle: a line that curves until its ends join. A ring is in the shape of a circle.
- Oval: a line that is curved like outline of an egg
- Square: a flat shape having four equal sides (the opposite sides are parallel) and all four internal angles of 90 degree
- Rectangle: a flat shape having four sides (the opposite sides are parallel) and all four internal angles of 90 degree
- Triangle: a flat shape having three sides and three angles
- Pentagon: a flat shape having five sides and five angles
- Hexagon: a flat shape having six sides and six angles
- Octagon: a flat shape having eight sides and eight angles
A shape that has length, width and height is called a solid figure. The solid shape can include:
- Cube: a solid figure having six square faces that are all equal. A cube has eight points and twelve edges.
- Cone: a solid figure with one circular base and curved side that narrows gradually until it joins to the top called the apex.
- Cylinder: a solid figure consisting of two circular ends and one curved side
- Pyramid: a solid figure consisting of square base and four triangular sides that meet at the top called the apex
- Sphere: a solid figure that is perfectly round like a ball