Grade 7 Integrated Science · Strand 1: Scientific Investigation · Laboratory Apparatus & Instruments
Measuring Length and Area
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 instrument is best suited to measure the internal diameter of a test tube with high precision?
- A. Half-metre rule
- B. Metre rule
- C. Flexible measuring tape
- D. Vernier calliper
2. A rectangular cardboard sheet is 25.0 cm long and 8.0 cm wide. Calculate its area in m^2.
Type your answer (in m^2) in the lesson.
3. How should you position your eye when reading a metre rule to avoid parallax error?
- A. From the left side of the mark
- B. With your line of sight at 90° directly above the mark
- C. From a low angle near the desk
- D. With one eye closed, from any angle
4. A leaf is placed on 1 cm × 1 cm grid paper. Its outline completely encloses 18 full squares and 6 squares that are half or more full. Using the grid method, estimate the area of the leaf.
Type your answer (in cm^2) in the lesson.
5. What is the base SI unit of length?
Type your answer in the lesson.
More in Laboratory Apparatus & Instruments
- Introduction to Laboratory Apparatus and Safety
- Heating Apparatus The Bunsen Burner
- Supporting and Heating Glassware
- Apparatus for Measuring Temperature
- Measuring Mass and Weight in the Laboratory
- Measuring Liquid Volume
- Measuring the Volume of Irregular Solids and Calculating Density
- Measuring Time and Rate in Experiments
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