Practical Science & Lab Skills: Techniques & Safety

Grade 9 Science — Practical Science & Lab Skills: Techniques & Safety: 25 practice questions with instant scoring and explanations.

1. The eyepiece of a microscope is used to:
2. The objective lens of a microscope provides:
3. Total magnification of a microscope = ?
4. When preparing a wet mount slide:
5. The iris diaphragm in a microscope controls:
6. Staining of biological specimens is done to:
7. Methylene blue stain is used for:
8. In the laboratory, the symbol ⚠ means:
9. When using a Bunsen burner in the lab, the hottest part of the flame is:
10. A beaker is primarily used for:
11. A volumetric flask is used for:
12. pH indicator strips change color to indicate:
13. In a circuit, a multimeter is used to measure:
14. A series circuit has components connected:
15. A parallel circuit provides:
16. In scientific measurement, significant figures refer to:
17. The number 0.00450 has _____ significant figures.
18. When adding measurements, the result should have significant figures equal to the measurement with:
19. The scientific method involves:
20. A control group in an experiment is used to:
21. Data analysis includes:
22. A line graph is best used for:
23. Personal protective equipment (PPE) in a lab includes:
24. When an acid spills, the appropriate first response is:
25. Distillation is a technique used to: