Here are 25 fun things to do with sidewalk chalk that will keep your kids busy for hours! Looking for some fun family ...

Researchers have created a new cooling fabric with a chalk-based coating to beat the ... this innovative fabric has the potential to make outdoor activities more comfortable and enjoyable for ...

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 ...