SC15.5.5

Science (2015) Grade(s): 5

Constructing Explanations and Designing Solutions

Cause and Effect

Students know:

Objects are made of many tiny particles to small to be seen.
Some objects have many tiny particles compacted close together that causes the object to sink while other objects the same size may float because their tiny particles are less compact.
Some objects of the same size sink when others float.
Buoyancy is the ability of an object to float.

Students are able to:

Predict the results of different types of objects being placed in water. Test the objects and communicate the results.
Use appropriate tools (Scale, balance, ruler, or graduated cylinder) to measure the weight, mass, and/volume of an object.
Construct an explanation to describe the observed relationship between density and the ability of an object to sink or float.
Identify the evidence that supports the explanation that density affects the ability of an object to sink or float.