Grade 4 Habitats and Communities Pulleys and Gears Light and Sound Rocks and Minerals A1 A Bird’s Home B1 Powerful Pulleys C1 Grey Tomatoes D1 Volcanoes A2 Amazing Builders B4 Teeth on Gears C2 Light Reflection D2 Chocolate Rocks A5 Camouflaged Pipe Cleaners B5 Geared Up C3 Bending Light D3 Growing Minerals B6 Twist and Turn! C4 A CD Spectrometer D4 Salt Damage C6 Hearing Sounds D5 Fossilized Rocks C7 Reflectors and Absorbers Grade 5 Human Organ Systems Forces Acting on Structures and Mechanisms Properties of and Changes in Matter Conservation of Energy and Resources A1 Deep Breathing B1 Force vs. Distance C1 Changing States D1 Transforming Energy A2 Eye Spy B4 Egg Protectors C2 Physical Changes D2 Storing Energy A4 Beating Hearts B5 Earthquake-proof Buildings C5 A Rusty Dilemma D3 Air – a Heat Insulator A5 Catch It! Grade 6 Biodiversity Flight Electricity and Electrical Devices Space A2 Fighting for Space B4 An Air Cannon C2 Tiny Lightning D1 Day and Night A3 Important Insects B5 Curving Air C4 Insulators and Conductors D2 Phases of the Moon C6 An Electric Generator D3 A Continuous Tug-of-war C7 A Graphite Circuit D4 Feeling Weightless C8 Series vs. Parallel Photo Credits PC Photo Credits