Grade 7 Integrated Science · Strand 1: Scientific Investigation · Laboratory Apparatus & Instruments
Measuring Liquid Volume
A short Grade 7 Integrated Science lesson for the CBE curriculum, part of Scientific Investigation: Laboratory Apparatus & Instruments. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.
1. Which apparatus should a learner choose to deliver exactly 25.0 ml of acid into a flask during an accurate experiment?
- A. A 100 ml glass beaker
- B. A 250 ml conical flask
- C. A calibrated 25 ml pipette
- D. A wide plastic test tube
2. A learner records an initial burette reading of 3.40 ml. After running liquid into a flask, the final reading is 28.90 ml. What volume of liquid was delivered?
Type your answer (in ml) in the lesson.
3. What name is given to the error caused by reading a scale from an angle instead of at horizontal eye level?
Type your answer in the lesson.
4. When measuring water in a measuring cylinder, which part of the meniscus should be level with the scale mark, and from what position should it be read?
- A. The top edge of the curve, with the eye above the cylinder
- B. The bottom of the curve, with the eye level with it and the cylinder on the bench
- C. The bottom of the curve, with the cylinder lifted above your head
- D. The liquid edge touching the glass, with the eye below the cylinder
5. A bottle of juice contains 250 ml. Express this volume in litres.
Type your answer (in L) in the lesson.
More in Laboratory Apparatus & Instruments
- Supporting and Heating Glassware
- Apparatus for Measuring Temperature
- Measuring Length and Area
- Measuring Mass and Weight in the Laboratory
- Measuring the Volume of Irregular Solids and Calculating Density
- Measuring Time and Rate in Experiments
- Optical Instruments The Light Microscope
- Operating the Light Microscope
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