Henry was having glass of water with some ice cubes in it and kept it near a window for some time. After some time, the water became warm. What is this process called?

• condensation

• freezing

• melting

• sublimation

• evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Walter was heating some cubes of ice while conducting an experiment. At one point, the ice melted into water. What is the correct term used to describe the amount of heat required to prompt a phase change?

• boiling point

• melting point

• heat of fusion

• heat of vaporization

• freezing point

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Jane was in an interview that lasted approximately 20 minutes. It was very cool in the room. As she walked out of the room, she noticed droplets of water formed on her spectacles. What is this transition of water from a vaporous state to a liquid state called?

• melting

• freezing

• evaporation

• condensation

• deposition

Tags

NGSS.MS-PS1-4

At which point does condensation occur in this water cycle diagram?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-4

How does a storm water runoff system store water?

Storm water that cannot be directed back into rivers or streams is stored in _____

Sarah recently learned that O2 is found in the Earth’s water bodies. She was amazed to know the proportion of O2 found in the ocean differs based on the water temperature. What fact did she find out?

Sarah recently learned that O2 is found in the Earth’s water bodies. She was amazed to know the proportion of O2 found in the ocean differs based on the water temperature. She found out that ___ parts of the oceans have a higher quantity of dissolved O2, whereas ___ parts of the ocean have a lesser quantity of it.

Which is the fifth most common pool where carbon is stored apart from the Earth’s crust, ocean, soils, and atmosphere?

The five most prominent pools where carbon is stored include the Earth’s crust, oceans, soil, atmosphere, and the _____

Tags

NGSS.MS-LS1-6

Hailey is writing about the anatomy of the human body. She identifies that most of the human body is water. What conclusion can she draw from this fact?

• The human body is the main element in the carbon cycle.

• The human body is the main element in the oxygen cycle.

• The human body contains large amounts of oxygen.

• The human body contains high levels of carbon.

• The human body is subject to chemical processes.

Tags

NGSS.MS-LS1-3

How does soil convert the organic matter back to CO2?

• through corrosion

• through photosynthesis

• through litterfall

• by decomposing it

• by human activities only

Jenny is learning about the importance of the ozone layer. She was upset to know that there is a depletion of the ozone layer and human activities are adding to it. While she decides to spread awareness on the effects of pollution and reasons to curb it, she cannot do anything about the natural process of ozone depletion. What is the natural process that is causing the depletion of the ozone layer?

• one that ensures ecological balance

• burning of fossil fuel

• UV rays reacting with the O2 molecules

• carbon cycle

• oxygen cycle