germ worksheet /understanding ratios

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Germ-away A virucidal and fungicidal cleaner for bath and wash rooms. Directions Ensure product is diluted correctly. Always use a clean container Always rinse cleaned area with clean water after use Dilution Deep cleaning and disfection 1 : 10 Shower areas and washrooms 1 : 25 Floors and surfaces 1 : 50 Sinks,toilets,drains,dustbins Use neat 1. What is the dilution rate for shower areas? ____ 2. What is the dilution rate for floors? ____ 3. What is the dilution rate for deep-cleaning? ____ 4. How many parts of water do you need per part of Germ-away for shower areas?_____ 5. You have measured 10ml of Germ-away. How much water will you need to use to clean a washroom? _________ 6. What does use neat mean? _________________________________________________ . Concrete is a mixture of gravel, sand and cement, usually in the ratio 3:2:1.

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This worksheet was sent to Hortykim by Ellen Morland from Foundation Studies at Otago Polytechnic

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Page 1: Germ Worksheet /Understanding Ratios

Germ-away

A virucidal and fungicidal cleaner for bath and wash rooms.

Directions

Ensure product is diluted correctly.

Always use a clean container

Always rinse cleaned area with clean water after use

Dilution

Deep cleaning and disfection 1 : 10

Shower areas and washrooms 1 : 25

Floors and surfaces 1 : 50

Sinks,toilets,drains,dustbins Use neat

1. What is the dilution rate for shower areas? ____

2. What is the dilution rate for floors? ____

3. What is the dilution rate for deep-cleaning? ____

4. How many parts of water do you need per part of Germ-away for shower areas?_____

5. You have measured 10ml of Germ-away. How much water will you need to use to clean a washroom? _________

6. What does use neat mean? _________________________________________________

. Concrete is a mixture of gravel, sand and cement, usually in the ratio 3:2:1.

If I had 9 portions of gravel how much sand and cement would I need? 9 : ___ : _____

If I had 8 bags of cement how much gravel and sand would I need? ___ : ___ : 8