MPH Science Textbook 5&6 - Interactions 1.   Forces       A. Forces       B. Forces at work   2.   Types of forces       A. Different types of forces       B. Friction       C. Elastic spring force       D. Gravity       E. Magnetic force   3.   Living together       A. Organism       B. Population       C. Habitats       D. Community   4.   Characteristics of the environment       A. Characteristics of an environment       B. Observing and describing the characteristics of an environment   5.   Food chains and food webs       A. Energy from the Sun       B. Producers       C. Consumers       D. Predators and prey       E. Food chains       F. Food webs       G. Keeping a balance       H. Decomposers   6.   Adaptations for survival       A. Adaptations       B. Adaptations for breathing in water       C. Adaptations for movement       D. Adaptations for catching prey       E. Adaptations for obtaining sunlight       F. Adaptations for coping with extreme temperatures       G. Adaptations for protection       H. Adaptations for reproduction   7.   Man's impact on the environment       A. Man and his environment       B. Positive impacts on our environment       C. Negative impacts on our environment       D. Saving our environment         Science today         Thematic concept map         Glossary