THE PHILADELPHIA GROUP-Amazing Science Kits: Snow in an Instant. Make artificial snow right at home! Watch it explode to 100 times its original size. Just add water! This kit contains one packet of snow powder, one measuring scoop, and an instruction sheet. Caution: D o not eat. Recommended for ages 8 and up. WARNING: CHOKING HAZARD- Small Parts. Not for children under 3 years. This set contains chemicals that may be harmful if misused. Adult supervision required. Imported.