Unit 2 Redo

Draw a water molecule. Make oxygen red. Make hydrogens blue. Add the + and - to each part of the molecule to show polarity.

Because H2O has both negative and positive charges, it is considered

• Polar

• Ionic

• Covalent

Properties of Water:

Water is a universal solvent. It can ________ many substances.

Tags

NGSS.HS-ESS2-5

Properties of Water:

Water changes density when the state of matter changes. Ice floats because it is ____ dense than liquid water.

(a)  

• less
• more

Tags

NGSS.HS-ESS2-5

Properties of Water:

Water has a high heat capacity. It can ​ (a)   a large amount of energy before the temperature changes. This is important for organisms and​ (b)   related to body temperature.

• absorb
• release
• homeostasis
• polarity

Tags

NGSS.HS-ESS2-5

Match the following

• Water sticks to other substances

• Adhesion

• Water sticks to water

• Cohesion

• Water molecules travel up a narrow tube

• Capillary Action

Tags

NGSS.HS-ESS2-5

Carbon has 4 electrons in its outer shell. Each electron in the outer shell can make one bond. How many bonds can carbon make with other atoms?

Tags

NGSS.HS-PS1-1

Organize these options into the right categories

Groups:

(a) Carbohydrate

,

(b) Lipid

,

(c) Protein

,

(d) Nucleic Acid

• Long-term energy

• C H O N P

• 
• Genetic information

• Saccharides

• 
• 
• Short-term energy

• C H O N

• Enzymes

• Cell membrane

• 

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-6

Match the carbohydrates

• made of 1 sugar

• Disaccharide

• made of many sugars

• Monosaccharide

• made of 2 sugars

• Polysaccharide

Which part of the cell is made of phospholipids?

Tags

NGSS.MS-LS1-2