Give students a toilet paper roll, black construction paper and a stick pin. Have students place the toilet paper roll on the black construction paper. Draw a second line around the outside of the circle. Cut the circle out around the outer line. Place pictures of constellations over the circles, one at a time. Use the stick pin and poke holes through the stars. Tape the construction paper to the toilet paper roll. Turn out the lights and cover the windows. Put a flashlight inside of the roll and flash the constellations on the bulletin board.
Give each student a slice of white bread, cotton swab, an eye dropper, water, a plastic bag and a brown paper bag. Squirt each child's hands with sanitizer. Have them rub the cotton swab over their desks. Using the eye dropper, place five or six drops of water on the bread. Put the bread in the sandwich bag. Place the bag in the brown paper bag. Leave the bags in a warm place and let them set for a couple days.
Give each child a white T-shirt and markers. Body part by body part, have students draw the body parts on the T-shirt in the correct location by tracing a pattern. Demonstrate how to add each piece to the T-shirt. Include stomach, intestine, heart, liver, esophagus and lungs. The parts should be added to the front and the back of the shirt. Let students fill in each body part with a different color.
When nine-year-olds study the weather, it helps them understand the water cycle. Make a black mark two inches from the bottom of a plastic zipper-lock bag. Fill the bag with water and zip it shut. At the end of the day, tape the bag to a window that the Sun will hit. Watch the bag over several hours. The entire water cycle will appear on the bag. Starting at the beginning of day; have students draw what they see on the bag every two hours.