
Knife Skills
Authored by Lisa Thompson
Science
4th Grade
NGSS covered

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the primary purpose of using a knife in scientific experiments?
To cut materials precisely
To stir solutions
To measure liquids
To heat substances
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following materials is most suitable for a knife blade used in laboratory settings?
Plastic
Wood
Stainless steel
Glass
Tags
NGSS.MS-ETS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a dissection experiment, why is it important to use a sharp knife?
To prevent damage to the specimen
To ensure accurate cuts
To avoid contamination
To reduce the risk of injury
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What safety equipment should be used when handling knives in a laboratory?
Safety goggles
Lab coat
Cut-resistant gloves
Ear plugs
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does the angle of a knife blade affect its cutting ability?
A smaller angle increases sharpness
A larger angle increases sharpness
Angle does not affect sharpness
Only the material affects sharpness
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scientific principle explains why a sharp knife cuts better than a dull one?
Newton's Third Law
Bernoulli's Principle
Pascal's Law
Pressure = Force/Area
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the best way to maintain the sharpness of a laboratory knife?
Store it in a damp place
Use it frequently
Sharpen it regularly
Wash it with soap
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