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Phase Changes
5 Minute Preview
Explore the relationship between molecular motion, temperature, and phase changes. Compare the molecular structure of solids, liquids, and gases. Graph temperature changes as ice is melted...
Lesson Info Launch GizmoPhases of Water
5 Minute Preview
Heat or cool a container of water and observe the phase changes that take place. Use a magnifying glass to observe water molecules as a solid, liquid, or gas. Compare the volumes of the...
Lesson Info Launch GizmoMelting Points
5 Minute Preview
Every substance has unique transition points, or temperatures at which one phase (solid, liquid, or gas) transitions to another. Use a realistic melting point apparatus to measure the...
Lesson Info Launch GizmoWater Cycle
5 Minute Preview
Control the path of a drop of water as it travels through the water cycle. Many alternatives are presented at each stage. Determine how the water moves from one location to another, and...
Lesson Info Launch GizmoProtecting Permafrost: Heat Transfer Highway
- Stem Case
Thawing permafrost threatens the stability of critical infrastructure in the Arctic community of Frostville, Alaska. Students take on the role of a civil engineer to design heat transfer...
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Protecting Permafrost: Heat Transfer Highway
- Stem Case
Video Preview
Thawing permafrost threatens the stability of critical infrastructure in the Arctic community of Frostville, Alaska. Students take on the role of a civil engineer to design heat transfer...
Lesson InfoPhase Changes
5 Minute Preview
Explore the relationship between molecular motion, temperature, and phase changes. Compare the molecular structure of solids, liquids, and gases. Graph temperature changes as ice is melted and water is boiled. Find the effect of altitude on phase changes. The starting temperature, ice volume, altitude, and rate of heating or cooling can be adjusted.
Lesson Info Launch GizmoPhases of Water
5 Minute Preview
Heat or cool a container of water and observe the phase changes that take place. Use a magnifying glass to observe water molecules as a solid, liquid, or gas. Compare the volumes of the three phases of water.
Lesson Info Launch GizmoMelting Points
5 Minute Preview
Every substance has unique transition points, or temperatures at which one phase (solid, liquid, or gas) transitions to another. Use a realistic melting point apparatus to measure the melting points, boiling points, and/or sublimation points of different substances and observe what these phase changes look like at the microscopic level. Based on the transition points, make inferences about the relative strengths of the forces holding these substances together.
Lesson Info Launch GizmoWater Cycle
5 Minute Preview
Control the path of a drop of water as it travels through the water cycle. Many alternatives are presented at each stage. Determine how the water moves from one location to another, and learn how water resources are distributed in these locations.
Lesson Info Launch GizmoProtecting Permafrost: Heat Transfer Highway
- Stem Case
Video Preview
Thawing permafrost threatens the stability of critical infrastructure in the Arctic community of Frostville, Alaska. Students take on the role of a civil engineer to design heat transfer solutions to protect permafrost in a warming climate.
Lesson InfoProtecting Permafrost: Heat Transfer Highway
- Stem Case
Video Preview
Thawing permafrost threatens the stability of critical infrastructure in the Arctic community of Frostville, Alaska. Students take on the role of a civil engineer to design heat transfer solutions to protect permafrost in a warming climate.
Lesson InfoFind Your Solution
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