Science Quiz- Unit 1

What is the goal of the scientific method?

• To solve a problem or better understand an observed event

• To make observations

• To analyze data

• To form a hypothesis

What is the difference between precision and accuracy in measurements?

• Precision is the closeness of a measurement to the actual value, while accuracy is the number of measurements taken

• Precision is the gauge of how exact a measurement is, while accuracy is the closeness of a measurement to the actual value

• Precision is the number of measurements taken, while accuracy is the gauge of how exact a measurement is

• Precision is the closeness of a measurement to the actual value, while accuracy is a gauge of how exact a measurement is

What is the purpose of scientific notation?

• To make large numbers smaller

• To make small numbers larger

• To make it easier to perform mathematical operations on numbers

• To write numbers with many zeros in a more concise way

What is the SI unit for measuring time?

• Gram

• Seconds

• Liter

• Meter

What is the difference between a scientific theory and a scientific law?

• A theory explains why an event happens, while a law states a repeated observation about nature

• A theory states a repeated observation about nature, while a law explains why an event happens

• A theory must continue to pass each test, while a law must explain observations simply and clearly

• A theory is always being questioned and examined, while a law is an explanation that has been tested by repeated observations

What is the purpose of a scientific model?

• To make it easier to understand things that might be too difficult to observe directly

• To analyze data

• To make predictions about future events

• To conduct experiments

What is the independent variable in a scientific experiment?

• What you keep the same

• What you observe

• What changes because of the independent variable

• What you change

What is the dependent variable in a scientific experiment?

• What you observe

• What you change

• What you keep the same

• What changes because of the independent variable

What is the first step of the scientific method?

• Form a hypothesis

• Ask a question

• Make an observation

• Test hypothesis

What is the purpose of a circle graph (pie chart)?

• To organize and present data

• To compare multiple values and distributions

• To display data that change over time

• To display data that are parts of a whole