Water Cycle Quiz (Week 3) - A worksheet with six questions testing knowledge on the water cycle, including steps, precipitation types, water density, molecular forces, transpiration, and changes in matter.

Let’s go through each question one by one and solve them carefully.

---

Question 1: List the steps in order for the water cycle (5 pts)

The water cycle has five main steps that happen over and over:

1. Evaporation – Water from oceans, lakes, rivers turns into vapor because of heat from the sun.
2. Transpiration – Plants release water vapor from their leaves into the air.
3. Condensation – Water vapor cools down and turns back into tiny droplets, forming clouds.
4. Precipitation – When clouds get heavy, water falls as rain, snow, sleet, or hail.
5. Collection/Runoff – Water flows back into bodies of water or soaks into the ground to start again.

*(Note: Sometimes “transpiration” is grouped with evaporation as “evapotranspiration,” but since we need 5 steps, listing it separately works.)*

---

Question 2: List 3 forms of precipitation: (3pts)

Precipitation is any form of water that falls from the sky. Three common ones are:

1. Rain
2. Snow
3. Hail

*(Other acceptable answers: Sleet, freezing rain — but these three are most common.)*

---

Question 3: What is the most dense form of water?

We know:
- Ice floats → so ice is less dense than liquid water.
- Steam and water vapor are gases → very low density.
- Liquid water (like in a bottle) is denser than ice or gas.

So the correct answer is:
→ C. Water in a bottle

*(Fun fact: Water is densest at about 4°C — colder than that, it starts expanding again when it freezes!)*

---

Question 4: Forces that attract similar molecules such as water molecules to water molecules are:

This is asking about forces between *same* types of molecules.

- Adhesive = attraction between *different* substances (like water sticking to glass).
- Cohesive = attraction between *same* molecules (water to water).
- Ionic bonds = hold ions together in salts, not relevant here.
- Hydrogen bonds = type of force that causes cohesion in water, but the general term for “same molecule attraction” is cohesive forces.

So best answer:
→ B. Cohesive Forces

*(Hydrogen bonds are what MAKE water cohesive, but the question asks for the NAME of the force category — which is cohesive.)*

---

Question 5: What is the process called for water moving up a plant stem in the process of transpiration?

Water moves up plants due to:

- Osmosis = movement across membranes (not mainly responsible for upward flow in stems).
- Condensation = turning vapor to liquid (happens in clouds).
- Capillary Action = water climbing up narrow tubes (like plant xylem) due to adhesion and cohesion.
- Photosynthesis = making food using sunlight (not related to water transport).

Correct answer:
→ C. Capillary Action

*(Actually, transpiration pull + capillary action work together — but among the choices, capillary action is the closest match for how water physically moves up the stem.)*

---

Question 6: Burning wood for fire is an example of

When you burn wood:

- It changes color, smell, texture — becomes ash and smoke.
- You can’t turn ash back into wood easily.
- New substances are formed (carbon dioxide, water vapor, etc.).

That means it’s a chemical change.

Physical change = same substance, just different shape/state (like melting ice).
Biological change = involves living things changing (like digestion).
Transformation change = not a standard science term.

Correct answer:
→ B. Chemical Change

---

Final Answer:

1. Evaporation, Transpiration, Condensation, Precipitation, Collection
2. Rain, Snow, Hail
3. C. Water in a bottle
4. B. Cohesive Forces
5. C. Capillary Action
6. B. Chemical Change