Scientific Method Review

Lee wants to make sure she understands the components of a good scientific investigation. She knows that it should be controlled and have a large sample size. Also, she thinks that the results should be communicated to other scientists. Which is another component that is necessary for a good investigation?

• It must be conducted in a big lab.

• It must be run by a university scientist.

• It must be done with expensive equipment.

• It must be able to be repicated by other scientists.

Which of the following is always considered part of a scientific investigation?

• a science laboratory

• graphs or charts of data

• a written rport that shows the data

• observations about the natural world

Which sequence of events is a logical order of a scientific investigation?

• experiment-hypothesis-analysis of data-conclusion

• hypothesis-experiment-conclusion-analysis of data

• analysis of data-conclusion-experiment-hypothesis

• hypothesis-experiment-analysis of data-conclusion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

Which of these is an observation that could be used to form a testable question for a scientific investigation?

• My dog seems sad.

• Dogs have four legs and a tail.

• White mice make good pets.

• Dogs think about people all the time.

Anton is a geologist. He wants to get the best possible information about lava flows from eruptions that are happening at some specific locations around the world. He wants to be able to vary what he studies based on his initial findings. Which type of investigation should Anton conduct?

• a survey

• fieldwork

• library research

• a laboratory investigation

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Smitty drops a rock from a set height and measures the time it takes the rock to reach the ground. He uses this time and the distance of the fall to calculate the average speed of the rock. He tests four rocks of different masses. Which question is Smitty investigating?

• What causes an object to accelerate?

• How does mass affect the speed of a falling object?

• How does mass affect the force exerted by an object?

• How does the free-fall height affect the speed of a falling object?

Tags

NGSS.MS-PS3-1

When you hear the word scientist, you may imagine a person in a white coat working in a laboratory. However, anyone, including you, can think like a scientist. What would a person who is thinking like a scientist do?

• ask testable questions

• talk with friends

• form opinions about science

• take a chemistry class in school

Tags

NGSS.MS-LS1-1

Which type of graph is a good way to show how data change over time?

• a line graph

• a circle graph

• a stem-and-leaf plot

• a box-and-whisker plot

Which statement best describes science?

• a collection of knowledge about Earth

• a list of facts that all scientists agree are true

• a study of natural events and conditions.

• a complete explaination of everything that happens in the universe

Chung is a scientist who invented a new material that absorbs water in a cup so that the water does not drip when the cup is turned upside down. She thought that the material might be good for cleaning up spills at home. Which of the following will help Chung the most in her investigation to see if the material will be good for this task?

• Test the material with different amounts of water.

• Give samples of the material to other scientists.

• Find the most efficient way to make a lot of the material.

• Use the latest scientific equipment for all experimenting.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4