Scientific Method Test 2023

In order to make observations, an observer must always use

• experiments

• the 5 senses

• hypotheses

• inferences

Which statement about a cloud is an inference?

• The cloud appears white.

• The cloud has an irregular shape.

• The cloud formed over a lake.

• The cloud is large.

A prediction of next year's winter weather is an example of

• a measurement

• a classification

• an observation

• an inference

In the classroom during a visual inspection of a rock, a student recorded four statements about the rock. Which statement is an OBSERVATION?

• The rock formed deep in Earth's interior.

• The rock cooled very rapidly.

• The rock was probably around the same time as the dinosaurs.

• The rock is black and shiny.

While on a field trip to a large lake, an observer recorded four statements about this lake. Which of these statements is most likely an INFERENCE?

• The lake was formed by a glacier.

• The water is clear enough to see the bottom.

• A log is floating on the lake.

• The surface temperature of the lake is 20 degrees Celsius.

Which activity would be an appropriate FIRST step when designing an experiment?

• reporting a conclusion based on multiple experimental trials

• researching the problem using information from a variety of sources to see what others have already found

• creating a data table to organize experimental observations

• repeating an experiment with a different hypothesis

The temperature outside is 25 degrees Celsius.

• observation

• inference

The boy was running down the hall, he must be late to class.

• observation

• inference

The girl wears pink almost everyday, it has to be her favorite color.

• observation

• inference

The dog has black and white spots.

• observation

• inference