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Term Scientific Definition Application in Water Cycle

evaporation when a liquid changes to its gaseous state Water has enough energy to leave its liquid

state and become water vapor.

condensation when a gas changes to its liquid state Water vapor molecules cool down high in the atmosphere and form droplets and then drops

of water.

precipitation any form of condensed

water falling back to Earth’s surface

With certain temperature and atmospheric pressure conditions, droplets of water in

clouds join together to form larger, heavier drops. Rain, snow, sleet, or hail falls to

Earth’s surface.

transpiration process of evaporation of water from the leaves of

plants

Plants absorb water from the soil. As they open tiny pores in their leaves to take in carbon dioxide for photosynthesis, some water escapes (along with oxygen) and

evaporates, becoming water vapor in the atmosphere.

infiltration process of rainwater soaking into the ground Rainwater soaks into the ground, through soil

and porous underground rock, becoming groundwater.

runoff water that flows over land

until it joins with rivers, lakes, and oceans

Much of the precipitation that returns to Earth’s surface is unable to be absorbed and flows downhill over Earth’s surface, collecting

minerals and soil) until it joins with rivers, lakes, and oceans.

Scenario

Scientists have collected a significant amount of data about the water cycle and the six main processes of the water cycle: evaporation, condensation, precipitation, transpiration, infiltration, and runoff. Some of the collected data can be observed in the scientific definitions and the diagram of the water cycle below.

6E3B The Water Cycle

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Based on the evidence, write a scientific description of how of the processes of the water cycle (evaporation, condensation, precipitation, transpiration, infiltration, and runoff) depend upon the Sun’s energy to cycle water on Earth.

6E3B The Water Cycle

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Claim

Evidence

Reasoning

6E3B The Water Cycle

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Rebuttal (Optional)

4

6E3B The Water Cycle

Points Awarded

2 1 0

Claim Student makes an accurate and complete claim.

Student makes a claim that is inaccurate or incomplete.

Student does not make a claim.

Evidence Student makes use of all pieces of available evidence, uses labels, and addresses variables.

Student provides some pieces of accurate evidence but does not make use of all available evidence.

Student does not provide evidence or only provides inappropriate or vague evidence.

Reasoning Student connects evidence to the claim and uses scientific principles and vocabulary.

Student cites a reason, but it is inaccurate or does not support the claim. Student’s reasoning does not use scientific terminology or uses it inaccurately.

Student does not connect the evidence to the claim.

Rubric for Writing a Scientific Explanation

6E3B The Water Cycle

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SCIENCE ADI-12 LAB REPORT Your Name

Date

6TH GRADE SCIENCE

INTRODUCTION

We have been studying _______________ in class. Before I started this investigation [ Describe what you did ] My goal for this investigation was to figure out [your goal]. The guiding question was [guiding question].

Method Describe how you collect your data? How did you carry out your investigation to answer the guiding question? How did you analyze your data?

Argument Claim

Evidence

Reasoning

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