Lesson 1 of 4 ยท Grade 7 Integrated Science
Science laboratory safety and apparatus
15 min
Laboratory rules
- Do not enter the lab without a teacher.
- Never eat or drink in the lab.
- Wear a lab coat, and goggles when heating or handling chemicals.
- Do not taste or smell chemicals directly; waft gently.
- Report all accidents and breakages.
- Keep long hair tied and work areas clean.
- Point test tubes away from yourself and others when heating.
Common apparatus
- Beaker: holding and heating liquids.
- Test tube: small-scale experiments.
- Measuring cylinder: measuring volume of liquids.
- Bunsen burner: heating. A blue (non-luminous) flame is hotter and cleaner than the yellow (luminous) flame.
- Tripod stand and wire gauze: support containers during heating.
- Filter funnel and filter paper: filtration.
- Thermometer: measuring temperature.
Hazard symbols
Flammable, corrosive, toxic, harmful/irritant and explosive symbols warn us how to handle chemicals safely.
Key points to remember
- Never eat, drink or taste chemicals in the lab
- The blue Bunsen flame is hotter
- A measuring cylinder measures liquid volume
- Hazard symbols warn of dangers
Test yourself
