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Answers to homework: (a) 1ml (b) 2ml (c) 0.2ml (d) 0.5ml

MINISTRY OF EDUCATION

SECONDARY ENGAGEMENT PROGRAMME

INTEGRATED SCIENCE

GRADE 7

Week 2 Lesson 1 – Worksheet 1: Easy

Complete the table below by writing the name of the equipment that best suits the functions

given.

Object Name FUNCTION

Used to pick up or hold hot objects

Protects the eyes from flying objects or chemical splashes.

A wide mouthed container used to transport, heat or store substances. It is not reliable for accurate measurements of volume.

A small container used heat small amounts of substances.

A device used to measure the mass of an object or substance.

Protects what the scientist is wearing from hazardous or hot chemicals spills.

Used to dispense a very small amount of a liquid.

Used to light a Bunsen burner.

Attaches to a lab stand and used to hold a variety of lab equipment.

Used to measure volumes very precisely.

Used to hold a variety of lab equipment, especially during a reaction in which a heat source is being used.

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Used to pour liquids into containers with small opening or to hold a filter paper.

Used to heat objects.

Week 2 Lesson 1– Worksheet 2: Challenging

Answer the questions given below by unscrambling the letters in bracket

1. Holding 100mL of water (ebkare)

________________

2. Measuring 27 mL of liquid (daudgtear ldnreiyc)

________________

3. Measuring exactly 43mL of an acid (retubet)

________________

4. Massing out 120 g of sodium chloride (acbnela) ________________

5. Suspending glassware over the Bunsen burner (rwei zeagu) ________________

6. Used to pour liquids into containers with small openings or to hold filter paper (unfenl) ________________

7. Mixing a small amount of chemicals together (lewl letpa) ________________

8. Heating contents in a test tube (estt ubet smalcp) ________________

9. Holding many test tubes filled with chemicals (estt ubet karc) ________________

10. Used to clean the inside of test tubes or graduated cylinders (iwer srbuh)

________________

11. Keeping liquid contents in a beaker from splattering (tahcw sgasl) ________________

12. A narrow-mouthed container used to transport, heat or store substances, often used when a stopper is required. (ymerereel kslaf) ________________

13. Heating contents in the lab (nuesnb bneurr) ________________

14. Transport a hot beaker (gntos) ________________

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15. Protects the eyes from flying objects or chemical splashes (ggloges)________________ 16. Used to grind chemicals to powder (tmraor nda stlepe) ________________

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MINISTRY OF EDUCATION

SECONDARY ENGAGEMENT PROGRAMME

INTEGRATED SCIENCE

GRADE 7

Week 2 Lesson 1– Worksheet 1: Answer Sheet

Object Name FUNCTION

Tongs

Used to pick up or hold hot objects

Goggles

Protects the eyes from flying objects or chemical splashes.

Beaker

A wide mouthed container used to transport, heat or store substances. It is not reliable for accurate measurements of volume.

Test tube

A small container used heat small amounts of substances.

Triple Beam Balance

A device used to measure the mass of an object or substance.

Lab coat

Protects what the scientist is wearing from hazardous or hot chemicals spills.

Dropper

Used to dispense a very small amount of a liquid.

Striker

Used to light a Bunsen burner.

Ring clamp

Attaches to a lab stand and used to hold a variety of lab equipment.

Graduated cylinder

Used to measure volumes very precisely.

Ring stand

Used to hold a variety of lab equipment, especially during a reaction in which a heat source is being used.

Funnel

Used to pour liquids into containers with small opening or to hold a filter paper.

Bunsen Burner Used to heat objects.

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Week 2 Lesson 1 – Worksheet 2: Answer Sheet

Answer the questions given below by unscrambling the letters in bracket

1. Holding 100mL of water (ebkare)

Beaker

2. Measuring 27 mL of liquid (daudgtear ldnreiyc)

Graduated cylinder

3. Measuring exactly 43mL of an acid (tretube)

Burette

4. Massing out 120 g of sodium chloride (acbnela) Balance

5. Suspending glassware over the Bunsen burner (rwei zeagu) Wire gauze

6. Used to pour liquids into containers with small openings or to hold filter paper

(unfenl) Funnel

7. Mixing a small amount of chemicals together (lewl letpa) Well plate

8. Heating contents in a test tube (estt ubet smalcp) Test tube clamps

9. Holding many test tubes filled with chemicals (estt ubet karc) Test tube rack

10. Used to clean the inside of test tubes or graduated cylinders (iwer srbuh)

Wire brush

11. Keeping liquid contents in a beaker from splattering (tahcw sgasl) Watch glass

12. A narrow-mouthed container used to transport, heat or store substances, often used when a stopper is required. (ymerereel kslaf) Erlenmeyer flask

13. Heating contents in the lab (nuesnb bneurr) Bunsen burner

14. Transport a hot beaker (gntos) Tongs

15. Protects the eyes from flying objects or chemical splashes (ggloges) Goggles

16. Used to grind chemicals to powder (tmraor nda stlepe) Mortar and Pestle