Add bicarbonate of soda to bottle A until it is one-third full Add cornflower to bottle A until another third is full - the bottle should now be two-thirds full ...

Chalk dust is spread in the path of a laser beam. The dust scatters light in the beam path, showing it moves in a straight line. Mount the laser on the lab stand, with the laser pointing to the side ...

Allow it to dry and cure as directed. Don’t be scared to experiment with different shades because Chalk Mineral Paint is available in a wide range of colors. Use a stencil to make a creative ...