I have some students who would love to "save" the super heroes- for states of matter unit- students could estimate the amount of time for super hero to be saved and we track actual time. Cheap and easy to do!
Creating your own rainstorm...this is so cool! All you need is a clear container, water, shaving cream, food coloring and droppers. Have kids make predictions by drawing what they see and think will happen.
Cut strips of newspaper and 'glue' seeds at the correct distance apart using a mixture of flour and water. Once dry, plant directly in your garden and cover with soil and water. Great for small seeds like carrots and lettuce. Kids love it!