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CATEGORY

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Data and Equations

Student has recorded the weight of the total system before and after the change. Parts of the system have been weighed individually, and an equation clearly explains the total weight as the sum of the weights of the parts. All units of measurement are included.

Student has recorded the weight of the total system before and after the change. Parts of the system have been weighed individually, and an equation clearly explains the total weight as the sum of the weights of the parts.

Student has recorded the weight of the total system before and after the change. Parts of the system have been weighed individually, but the equation is unclear or incorrect.

Student has recorded the weight of the total system before and after the change, but the data is not accurate. Parts of the system have been weighed individually, but the equation is unclear or incorrect.

Graph

The graph clearly shows the total weight of the system as the sum of the weight of its component parts. Weights before and after the change are compared and shown to be equal. Graph includes a title, labels for each axis, and clear units of measurement.

The graph clearly shows the total weight of the system as the sum of the weight of its component parts. Weights before and after the change are compared and shown to be equal. Graph includes a title.

The graph shows the total weight of the system as the sum of the weight of its component parts. Weights before and after the change are compared and shown to be equal. Graph includes a title.

The graph shows the total weight of the system as the sum of the weight of its component parts.

Neatness

The paragraph is clear and easy to read. The graph is in color and labeled neatly.

The paragraph is clear and easy to read. The graph is labeled neatly.

The paragraph and graph are mostly clear and easy to read.

The paragraph and / or graph are difficult to read.

Use of evidence to support claim

The student makes a claim about the conservation of weight and uses detailed evidence to support this claim. The paragraph clearly explains how the student experimented to determine that weight was conserved and refers to the graph as further evidence.

The student makes a claim about the conservation of weight and uses detailed evidence to support this claim. The paragraph clearly explains how the student experimented to determine that weight was conserved.

The student makes a claim about the conservation of weight and uses some evidence to support this claim. The paragraph partially explains how the student experimented to determine that weight was conserved.

The student makes a claim about the conservation of weight, but little evidence is presented to support this claim.