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Exam (elaborations)
Student Exploration_ Density GIZMO ANSWER KEY.
Directions: Follow the instructions to go through the simulation. Respond to the questions and 
prompts in the orange boxes. 
Vocabulary: density, mass, matter, volume 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
1. List three objects that you think would sink in water, and three objects you think would float. 
Sink: An egg, a penny, and a rock. 
Float: A ping pong ball, an air-filled balloon, a boat 
2. Why do you think some things float and some things sink? 
Some things floa...
Exam (elaborations)
Student Exploration_ Density GIZMO ANSWER KEY.
PopularDirections: Follow the instructions to go through the simulation. Respond to the questions and 
prompts in the orange boxes. 
Vocabulary: density, mass, matter, volume 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
1. List three objects that you think would sink in water, and three objects you think would float. 
Sink: An egg, a penny, and a rock. 
Float: A ping pong ball, an air-filled balloon, a boat 
2. Why do you think some things float and some things sink? 
Some things floa...
Exam (elaborations)
Student Exploration_ Density GIZMO ANSWER KEY
1. List three objects that you think would sink in water, and three objects you think would float. 
Sink: An egg, a penny, and a rock. 
Float: A ping pong ball, an air-filled balloon, a boat 
2. Why do you think some things float and some things sink? 
Some things float and some things sink because it all depends on how much matter is 
inside the object that you’re using. 
Gizmo Warm-up 
1. In the Gizmo, drag the apple onto the Scale. The scale measures mass. Mass is the 
amount of matter, or ...