The National Geographic Explorer Science Series Earth Science Kit has everything a young scientist needs for an unforgettable hands-on experience in different branches of science that explore planet Earth! Kids ages 8 years and up will love making their very own erupting volcano and experiencing the thrill of chemistry at work as the eruption powder reacts with water. They will also be amazed as the crystal-growing solution they create grows into a fully formed crystal in 3 – 7 days! Budding geologists will be thrilled with the pyrite dig brick and dig tool. Plus additional rock and mineral specimens—including snowflake obsidian tiger s eye green fluorite pumice desert rose blue calcite geode and agate—make a great start to any rock collection. The kit also contains a handy storage case for all the cool specimens. And finally there is a tornado tube in this set that allows kids to create a mesmerizing water vortex! There are so many fun activities in this kit that it s perfect to share. Plus kids can learn the science behind crystals volcanoes tornadoes and gemstones with the help of our full-color learning guide.