Gr LEVELS K-P DRA LEVELS 18-38- Set contains -2 copies of each: "Adrenalin Rush", "Dining on dirt", "dive into Science", "full of hot air", "gripping and slipping", "how does it work?", "magnets", "Rocks and minerals", "simple machines", "Sing, it's spring!", "tails tell tales", "what can you do with a leaf?"