Unit Test Answers

Which model is most likely used to predict a future event?

The list shows the results of six athletes competing in the long jump, which has a target distance of 20 feet.12 feet, 11 feet, 13 feet, 10 feet, 20 feet, 12 feet

Why is it important to have a control group in an experimental investigation?

Which characteristic should a good scientific question have?

Students are studying the changing concentration of carbon dioxide levels in different substances. They insert sensors into each substance and allow a device to graph the results.What are the students most likely using?

Advancements in which field have increased the ability to store increasing amounts of data on electronic devices?

The kinetic molecular theory states that all matter is made up of atoms that are in continuous random motion. If a scientist discovered that several atoms seemed to move in a predictable pattern, what is the likely effect of this discovery on the kinetic molecular theory?

Chet plans an experimental investigation to see how well a new fertilizer works on daisies. The fertilizer must be dissolved in water and delivered to the plants by spraying it onto the leaves and stems.To set up his control group for the experiment, Chet should leave out the

Which is one reason why hydrogen is considered a better fuel source for cars?

What is 0.000345 expressed in scientific notation?

Which action would best demonstrate that a scientist is being creative?

Alicia conducted an experiment to find out which insulating material holds in the most heat. She did multiple trials of each test and recorded observations of each trial.Why did Alicia do more than one trial?

Which describes the correct procedure when converting a number from scientific notation to standard notation?

The table shows results of an experiment that was replicated.

A theory is accepted as true when