Nail Tips and Forms

What is the primary function of nail tips in scientific experiments?

• To protect the nail bed

• To extend the length of the nail

• To provide a surface for chemical reactions

• To measure the growth rate of nails

Which material is commonly used for making nail forms in laboratory settings?

• Plastic

• Metal

• Glass

• Paper

In a study of nail growth, which variable is most likely to be the independent variable?

• Nail length

• Time

• Nail color

• Nail thickness

What scientific principle explains the adhesion of nail tips to natural nails?

• Cohesion

• Adhesion

• Capillary action

• Surface tension

Which of the following is a common method for sterilizing nail forms before use in experiments?

• Boiling

• Autoclaving

• Freezing

• Drying

In an experiment, if nail tips are used to test the effect of a chemical on nail strength, what is the dependent variable?

• Type of chemical

• Nail strength

• Size of nail tip

• Duration of exposure

Tags

NGSS.MS-PS1-2

What is the role of a control group when using nail forms in a scientific study?

• To provide a baseline for comparison

• To increase the sample size

• To ensure all variables are tested

• To eliminate human error

Which scientific tool is most appropriate for measuring the thickness of nail tips?

• Ruler

• Caliper

• Micrometer

• Scale

What type of bond is primarily responsible for the hardness of nail tips?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

In a chemical analysis of nail forms, which element is least likely to be found?

• Carbon

• Silicon

• Oxygen

• Helium