Unit 3 Summative

The chemical compound of water is

• HO
• H₂O
• H₃O
• HO₂

Tags

NGSS.MS-PS1-1

A Compound that is being dissolved is called a

• Solution
• Solute
• Solvent
• Suspension

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Tags

NGSS.HS-ESS2-5

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

molecule in which opposite ends have opposite electric charges

• cohesion
• polar molecule
• hydrogen bond
• solution

Tags

NGSS.MS-PS1-1

Which of the following is LEAST likely to dissolve in water?

• nonpolar fats and oils
• polar sugar molecules
• salt made of a positive sodium ion and a negative chloride ion
• all of the substances will dissolve easily in water

Tags

NGSS.HS-PS1-3

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

Tags

NGSS.HS-LS1-6

The element _______is found in all of the organic compounds.

• Iron
• Nitrogen
• Carbon
• Oxygen

Tags

NGSS.MS-PS1-1

DNA and RNA are examples of 

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids

Nucleotides are monomers of

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids