Cluster 1 Day 2: Nature of Science

Cluster 1 Day 2: Nature of Science

Multiple Choice

On his voyage on the HMS Beagle, Darwin saw fossils of giants sloths whose bones resembled bones of living sloths, but were much larger in size. Darwin hypothesized that the fossil sloths were related to sloths alive today. This hypothesis was based on

• investigations using observations and inference.

• Experimentations using controlled variables.

• Creating models to create a theory

• making predictions

Multiple Choice

A biologist hypothesizes that a squirrel's body size is affected by the inclusion of a particular type of food in its diet. Which is the best method the scientist could use to prove his hypothesis?

• Collect data by observing the squirrel's eating food in the wild.

• Design a controlled experiment to test different types of food.

• Analyze data from existing scientific studies on the different types of food.

• Develop a theoretical model to predict how the food type will affect body size.

Multiple Choice

Since atoms are extremely small, scientists use models to help them and others visualize the atom. To the left, you will find a model of an atom. Which of the answer choices is true about this model?

• A limitation of this model is that you can't see where the protons, neutrons and electrons are in relation to one another.

• A benefit of this model is that it shows exactly how an atom looks in size and shape.

• A limitation of this model is that it is much bigger than an actual atom.

• A benefit of this model is that it moves just like a real atom would.