HE Kuis Air

James, Ethan, and Anika are discussing the human body in their biology class. They learned that the human body is made up of a certain percentage of water. Ethan thinks it's 70%. What percentage of the human body is actually comprised of water?

• 10%

• 30%

• 50%

• 70%

Abigail, Daniel, and Rohan are studying for their geography exam. They are discussing the current condition of the planet's water resources. What conclusion do they reach?

• Unknown

• Stable

• Depleted

• Abundant

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-4

NGSS.MS-ESS3-1

Abigail, Olivia, and Lily are studying the major human impacts on water quality and quantity in their geography class. They are discussing the current global issues. According to their study, what are the major human impacts on water quality and quantity in the world today?

• Conservation and preservation efforts by various organizations

• Climate change effects and erosion caused by deforestation

• Pollution from industries and overuse of water resources

• Natural filtration processes and replenishment of water bodies

Tags

NGSS.MS-ESS3-4

James, Nora, and Daniel are having a debate about the structure of a water molecule. James says it consists of two oxygen atoms and one hydrogen atom. Nora thinks it's two hydrogen atoms and one oxygen atom. Daniel believes it's two oxygen atoms and two hydrogen atoms. Who is correct?

• James, who says it's two oxygen atoms and one hydrogen atom

• Nora, who thinks it's two hydrogen atoms and one oxygen atom

• Daniel, who believes it's two oxygen atoms and two hydrogen atoms

• None of them are correct

Tags

NGSS.MS-PS1-1

Zoe, Kai, and Grace were studying for their chemistry exam. They were discussing the properties of water. Zoe asked, 'Which property of water is demonstrated when it sticks to the glass of a beaker, showing molecular polarity?'

• Electronegativity

• Hydrogen bonding

• Adhesion

• Cohesion

Abigail, Luna, and James are at a water park. They notice how water flows smoothly down the slides and wonder what gives water its fluid consistency. What do you think is the reason?

• Strong hydrogen bonds

• Weak hydrogen bonds

• Ionic bonds

• Covalent bonds

Daniel, Evelyn, and Scarlett are conducting a science experiment. They noticed that water can dissolve many substances they used in their experiment. What property of water is responsible for this?

• Its ability to dissolve hydrophobic substances

• Its ability to dissolve gases

• Its ability to dissolve most polar substances

• Its ability to dissolve non-polar substances

During a winter picnic, Olivia, Sophia, and Arjun noticed that their ice cubes were floating on the surface of their lake. Why did this happen?

• Ice is less dense than liquid water

• Ice is more dense than liquid water

• Ice has a higher boiling point than liquid water

• Ice has a lower freezing point than liquid water

Emma, Liam, and Noah are studying for their biology exam. They learned that water is essential for the human body to function. Liam thinks it's because water helps in digestion. What is the primary role of water in the human body?

• Water acts as a lubricant in digestion

• Water helps to maintain body temperature

• Water helps to transport nutrients and oxygen to cells

• All of the above

Oliver, Ava, and Isabella are discussing the properties of water in their chemistry class. They learned that water has a high heat capacity. What does this mean?

• Water can absorb a lot of heat before it begins to get hot

• Water cannot absorb heat

• Water gets hot quickly

• Water has a low freezing point