Thermal Expansion of Water

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Description

This is a short experiment to demonstrate the concept of thermal expansion of water when heated, as an analogy to thermal expansion of oceans due to global warming.

Construct, analyze, and/or interpret graphical displays of data and/or large data sets to identify linear and nonlinear relationships.

Construct a scientific explanation based on valid and reliable evidence obtained from sources (including the students’ own experiments) and the assumption that theories and laws that describe the natural world operate today as they did in the past and will continue to do so in the future.

Develop and/or use a model to predict and/or describe phenomena.

Conduct an investigation and/or evaluate and/or revise the experimental design to produce data to serve as the basis for evidence that meet the goals of the investigation.

Gases and liquids are made of molecules or inert atoms that are moving about relative to each other.

The term “heat” as used in everyday language refers both to thermal energy (the motion of atoms or molecules within a substance) and the transfer of that thermal energy from one object to another. In science, heat is used only for this second meaning; it refers to the energy transferred due to the temperature difference between two objects.

Cause and effect relationships may be used to predict phenomena in natural or designed systems.

Time, space, and energy phenomena can be observed at various scales using models to study systems that are too large or too small.

Matter is conserved because atoms are conserved in physical and chemical processes.

Patterns in rates of change and other numerical relationships can provide information about natural systems.

Small changes in one part of a system might cause large changes in another part.