Scientific Research Concepts and Terminology

This video tutorial covers key concepts in science for 7th-grade students, including the branches of science, scientific tools, methods, and variables. It explains fundamental and derived quantities, hypothesis testing, and the differences between qualitative and quantitative observations. The video encourages students to practice and review the material for better understanding.

How many branches of science are there?

• 4

• 6

• 5

• 7

Which of the following is not a tool for measuring materials?

• Spicy taste

• Test tube

• Thermometer

• Statif

What is the approach used in scientific research called?

• Scientific method

• Observation

• Experiment

• Hypothesis

What is a temporary assumption in an experiment called?

• Observation

• Hypothesis

• Experiment

• Conclusion

How many types of variables are there in scientific research?

• 5

• 3

• 4

• 2

What is a factor kept constant during an experiment called?

• Variable type

• Control variable

• Dependent variable

• Independent variable

Which of the following is not a fundamental quantity?

• Area

• Mass

• Time

• Temperature

Candela is a unit of which fundamental quantity?

• Temperature

• Amount of substance

• Time

• Light intensity

What happens if the results of an experiment match the hypothesis?

• Hypothesis partially rejected

• Hypothesis partially accepted

• Hypothesis rejected

• Hypothesis accepted

What is an observation described using words called?

• Descriptive analysis

• Quantitative observation

• Qualitative observation

• Numerical analysis