Who invented bubblegum whatâ s the worldâ s worst smell when did the dinos die out where are all the aliens how do cats purr the week junior science nature is the mind-blowing magazine with answers to all these questions â and more jam-packed with amazing facts, brilliant explainers, hands-on activities and incredible photos, science nature gets 8 to 15-year-olds thinking, discovering and doing. Designed to bring stem subjects to life, each issue delivers a whole world of wow to their door every four weeks.