Tools in Scientific Trade in Grade 7 Science

In Grade 7 science, the presentation of tools in a scientific trade typically revolves around familiarizing students with basic scientific instruments and their correct use. Here’s a description of how these tools might be introduced and explained:

6. Tools of the
Scientific
Trade

7. Glassware
and
Accessories

8. Beaker
Purpose: to find
the mass of irregular
objects or for
working with larger
volumes of liquids

9. Erlenmeyer Flask
Purpose: to
measure, mix, and
store liquids
Safety: use
caution when
dealing with hot or
cold liquids

10. Graduated Cylinder
Purpose: used to
accurately
measure the
volume of a liquid;
like the measuring
cup of the science
lab

11. Test Tube
Purpose: A thin glass
tube used to hold small
amounts of material for
testing or experiments
Safety: use caution
when working with
chemicals; discard
broken tubes per
teacher directions

12. Test Tube Holder
Purpose: to hold/support test tubes

13. Pipette
Purpose:
transport a
specified volume
of liquid to
another vessel

14. Parallax Error

15. Instruments
and
Equipment

16. Bunsen Burner
Purpose: produces a
single open gas flame
for heating, sterilizing,
and combustion
Safety: use caution
when working with an
open flame

17. Spring Scale
Purpose: to find the
weight of an object

18. Triple Beam Balance
Purpose:
used to find
mass before
and after an
experiment

19. Compound Light Microscope
Purpose: to
magnify microscopic
objects
Safety: carry close
to your body using 2
hands

20. Activity
Identify the following tools
of the Scientific Trade

21. 1.
Purpose: to find the
weight of an object

22. 2.
Purpose: used to find mass
before and after an experiment

23. 3.
Purpose: to magnify
microscopic objects

24. 4.Purpose: to find the mass of
irregular objects or for working
with larger volumes of liquids

25. 5.
Purpose: A thin glass tube used to
hold small amounts of material for
testing or experiments

26. 6.
Purpose: transport a specified
volume of liquid to another vessel

27. Purpose: used to
accurately
measure the
volume of a liquid;
like the measuring
cup of the science
lab

28. Purpose: produces a
single open gas flame
for heating, sterilizing,
and combustion
Safety: use caution
when working with an
open flame

29. Purpose: to
measure, mix, and
store liquids
Safety: use caution
when dealing with
hot or cold liquids

30. Purpose: to hold/support test tubes

31. Culture of
Safety
in Science

32. Safety Rules
Always follow instructions.
Wear appropriate laboratory attire
and protective equipment.
Assume that all chemicals present in
the laboratory are potentially toxic.
Do not consume food or beverages in
the laboratory.

33. Safety Rules

34. Safety Rules

35. Safety Rules

36. Safety Rules

37. Safety Rules

38. Safety Rules

39. Safety Rules

40. Safety Rules

41. Safety
Symbols

44. Activity

45. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

46. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

47. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

48. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

49. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

50. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

51. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

52. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

53. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT

54. 1. Identify the symbol
*EXPLOSIVE *CORROSIVE
*FLAMMABLE *OXIDIZING
*HARMFUL *IRRITANT
*HOT SURFACE *TOXIC
*HIGH VOLTAGE
*DANGEROUS FOR THE
ENV-IRONMENT