Match the leaf to the tree / plant
Collect 10 or more common indigenous leaves (or small twig with leaves on if the leaves are small) and staple by the stem onto A4 card with a letter A, B, C etc.
Print out a quiz sheet with the tree/plant names in random order and a space alongside to be filled in with the letter of the leaf.
Place "Leaf Cards" on tables around the hall, give each cub an quiz sheet and pencil and ask them to identify the leaf by putting the letter alongside the name of the tree/plant. Take in answer sheets, run through correct ID. Any cub with 6 or more correct qualifies for element of Naturalist Badge.