Make a cooperative craft from water in solid form. Collect 20 plastic containers in sizes that range from gallon-sized ice-cream tubs to individual yogurt cups. Fill the containers with water, leaving two inches between the water level and the top of the container lid. Let the children add drops of food coloring, one or two drops at a time, to the containers of water until the water is tinted to the child's satisfaction. Place the containers outside to freeze if you live in a cold enough climate. Those in warmer areas can place the containers in the freezer. When the water is frozen solid, take the containers outdoors and pop-out the ice shapes. Wear mittens to stack and construct colored ice castles from the ice shapes. Take pictures of the ice castle craft before it melts away. Be aware that food coloring can stain clothing.
Collect three 4-ounce glass baby food jars for each water xylophone. Before the children begin to work on the craft, apply hot glue to the bottom of the jars and glue them, 1 inch apart, to an 8-inch long and 3-inch wide rectangular strip of heavy corrugated cardboard. Give the children the jars on the cardboard, an 8-ounce cup of water and a new, unsharpened pencil. Tell the kids to pour water in the first cup (the cup on their left) until the water level reaches the bottom of the jar rim. Instruct the children to fill the middle jar half full of water. Ask the kids to pour only an inch of water into the last jar. An adult can draw a 1/4-inch long line with a permanent marker on the outside of the glass to mark the height of the water levels. Let the children paint the cardboard base and the lids to the jars and add food color to the water. Play the xylophone by striking the open jars with the pencil. Screw on the lids to avoid spilling the water when moving the xylophone.
Take your craft project outside in the rain and let the water fall from the sky to make patterns in dry paint . Sprinkle two to three tsp. of powdered tempera paint, available at teacher supply stores, on a paper plate. Hold the plate outside in the falling rain so the powder becomes damp, but the plate is not soaking. Let the rain paintings dry. Cut the plates into umbrella shapes and tape or staple them to a 12-inch length of yarn. Tie the yarn to a thumbtack and stick it into the ceiling to display the rain painting.