Page 13 - Kindergarten.indd

8 The diagrams below are a depiction of the Earth 225 million years ago and the

Earth during the present day.

Which of the following most likely caused the change in land mass over the past
225 million years?

A. The changes that occur are due to movement of strong ocean currents.
B. The changes that occur are a result of weathering and erosion.
C. The changes that occur are a result of plate tectonic motion.
D. The changes to the Earth are caused by natural disasters.

9 A student experiments with an unknown substance to determine its properties.

Below are the results of the findings.

PROPERTY RESULTS

Luster Shiny
Melting Point High
3
Density 13.6 g/cm

Heat Conduction Good

Ductile Ductile

Malleable Malleable

Which of the following is the conclusion that was most likely made?

A. The substance is a liquid.
B. The substance is a gas.

C. The substance is a non-metallic solid.
D. The substance is a metallic solid.

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