I am beginning to plan the first Science unit and am a little confused on something. First, here is the goal I am working on: Goal 3 The learner will make observations and use appropriate technology to build an understanding of the earth/moon/sun system. Objective 3.01 Observe that light travels in a straight line until it strikes an object and is reflected and/or absorbed. Objective 3.02 Observe that objects in the sky have patterns of movement including: * Sun. * Moon. * Stars. Objective 3.03 Using shadows, follow and record the apparent movement of the sun in the sky during the day. Objective 3.04 Use appropriate tools to make observations of the moon. Objective 3.05 Observe and record the change in the apparent shape of the moon from day to day over several months and describe the pattern of changes. Objective 3.06 Observe that patterns of stars in the sky stay the same, although they appear to move across the sky nightly. What throws me off is 3.01...I know that I can meet this on its own in a physical science mini unit, but how can I work this in with the rest of it, so that it is one cohesive unit relating light to everything else while making sure they understand the basics of light? I guess I am just concerned about starting with a small unit on light, then moving into the earth, moon, sun concepts and not linking them correctly. I'd love it if I could get ideas and help!! Thank you.