3 Conducting and Recording Experiments Free Online FlashCards

What should begin a scientific investigation?

A scientific investigation begins with a focused question that can be explored by gathering evidence.

What does an experiment test?

An experiment tests how changing a condition affects what happens.

How do you make a test fair?

Change one condition at a time and keep other important conditions the same.

Why should an investigation procedure use clear, ordered steps?

Write clear, ordered steps so another person can follow the investigation.

What details belong in a planned procedure?

Include the materials, how measurements will be taken, and how many trials will be made.

Why repeat trials in an experiment?

Repeated trials help show whether a pattern is consistent or whether a result may have been unusual.

What are key steps for planning a safe investigation?

Follow the teacher’s instructions, use approved materials and equipment, and wear any required protective gear.

What should you do if an investigation seems unsafe?

Stop and tell the teacher if something spills, breaks, or seems unsafe.

When should you record observations?

Record observations as you work, not from memory afterward.

What information belongs in an investigation record?

A useful record includes the date, question, procedure, materials, and results.

How should measurements be presented in a results table?

Label tables clearly and include units with measurements, such as centimeters, seconds, or milliliters.

How do qualitative and quantitative observations differ?

Qualitative observations use descriptive words, such as “felt damp”; quantitative observations use numbers, such as “absorbed 12 mL.”