Fill in each blank with the correct word from the lesson.

1. _______ pours off the clear water.
2. Real water-_______ plants do the same thing — just on a much, much bigger scale.
3. It's _______ and brown — but the water itself is fine.
4. Imagine you draw a glass of _______ from a pond after the rains.
5. _______ation lets the heavy stuff settle.

Choose the best option for each question.

1. What is sedimentation?
   a) Pouring water from one glass to anotherb) Heavier bits settling to the bottom over timec) Catching small bits in a clothd) Boiling the water away
2. Which step comes right AFTER sedimentation?
   a) Filtrationb) Decantationc) Boilingd) Magnetic separation
3. What does the cloth or filter paper catch?
   a) The tiny bits of mud still floatingb) The waterc) Air bubblesd) Nothing — it just looks pretty

Write T for True or F for False in the brackets.

1. Heavier bits settling to the bottom over time is one of the key concepts in the lesson on Cleaning Muddy Water.
2. Pouring water from one glass to another is the main topic of this lesson.
3. Decantation pours off the clear water.
4. Filtration pours off the clear water.

1. In your own words, explain what Cleaning Muddy Water means.
2. List two things you learned from this lesson on Cleaning Muddy Water.