5^th Grade Astronomy Unit Blueprint

Pacing Suggestions: 1 day

Teacher Resources:
Tips	Light and Liquids Adobe® Reader® (PDF)

In what direction does light travel? What causes the direction to change?

When light interacts (hits) an object, what are the different ways it behaves?

4F(3-5)#3: Light travels and tends to maintain its direction of motion until it interacts with an object or material. Light can be absorbed, redirected, bounced back, or allowed to pass through.

Questions 1-7 on Light and Liquids lab sheet and class discussion of activity (See "Teacher Resources" on electronic curriculum for a copy of the lab sheet.)

• In questions 1-6, are students able to articulate that light can pass through, be bent, and be absorbed by materials (liquids and air)?
• In question 7 and during class discussion, are students able to generalize the following:
• Light travels in a straight line until it interacts with an object
• Once light interacts with an object, its path will either pass through the object and continue in the same direction, be bent in a different direction, or be absorbed

12D(3-5)#2: Make sketches to aid in explaining procedures or ideas.

Drawings on Lights and Liquids worksheet

• Did students accurately sketch the path of light through each cup to show its interaction with the liquid?
• Are the sketches clear, detailed, and understandable?
• Do the sketches feature descriptive labels, appropriate size, and appropriate amount of detail?
  (The rubric, which is used in Lesson 6, can be shown in this lesson to assist students in reflecting on their lab sketches and understanding the qualities of detailed sketches.)