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These lessons are intended for use in any high school biology course. However, many can be used in middle school / junior high school life science and earth science classes, possibly with slight modification depending on teacher's style and approach, and the experience and level of students. Many...
Grade Level   7 8 9 10 11 12
Classroom Activities Curricula and Instruction
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"Scientists have good evidence that the earth is very old, approximately four and one-half billion years old. Scientific measurements such as radiometric dating use the natural radioactivity of certain elements found in rocks to help determine their age. Scientists also use direct evidence from...
Grade Level   5 6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
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