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Light
Investigation 1
Investigation 1
Light
Phase 1 – Defined Understanding
Student Guide
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Access Teacher Guide
Student Guide with answers
Teacher PreLab
Prepare for the Experiment
Phase 2 – Dynamic Understanding
► Investigation One Summary – Lab Goals
In Investigation One, you learned about several properties of light. In particular, when light interacts with an object, it can be absorbed, transmitted, reflected, refracted, diffracted, or scattered. During this Investigation, you:
- Observed transmission and absorption of light using a flashlight and four beakers filled with 50ml of water each gradually increasing in color concentration.
- Used a spectrophotometer to measure the absorbance and transmittance of light in several solutions of increasing color concentration.
- Determined the color concentration of an unknown solution using collected data from previous solution samples.
► Investigation One Summary – Learning Goals
Through these experiments, you concluded that:
1. There is an inverse relationship between the amount of light that is transmitted versus that which is absorbed as light interacts with a transparent liquid. The more light that is transmitted, the less that is absorbed. As more light is absorbed, less is transmitted through the transparent medium.
Concept Slides
Launch and Discuss
Mathematics Concepts in This Investigation
- (in)direct relationships
- patterns/trends
- variables
- constants
- data table
- data analysis
- volume in mL
- counting whole numbers
- least to greatest
- greater than/less than/equal to
- distance in cm
- percentages
- continuum scale
- wavelength in nanometers
- decimals to the nearest tenth and hundredth
- line graph
- skip counting by 0.2 and 2
- parts/whole
- reciprocal