Dr. Toy Winner! 4 individual science kits are included in this set. Hours of fun and learning. (1)Recycling kit teachs your child the importance of recycling by actually making new paper from a brown bag to use as labels on his/her own recycling bins. (2)Measurement teaches the importance of measuring in both the metric system and the English system, as well as recording results in charts and graphs. (3)Magnets teaches the properties of magnets such as repulsion versus attraction, N. Pole versus S. Pole, and magnetic materials v.s. non-magnetic materials. Properties are used to make a simple compass. (4)Weather teaches about the weather by: making a weather vane to study wind direction, a thermometer to study temperature, a barometer to study change in air pressure and a rain gauge to measure rainfall.