STAAR Editing --"Using Solar Power to Clean Drinking Water"

What change is needed in sentence 6?

(6) He explained that water is heated by the sun, evaporates up into the air, condenses into drops, and then fell back to the ground, pure and free of contaminants.

• Change explained to has explained

• Change then to than

• Change fell to falls

• Delete the comma after ground

Tags

CCSS.L.3.2C

CCSS.L.4.2B

CCSS.L.6.3A

What change should be made in sentence 25?

(25) Furthermore, this solar water purifier is cheaper than other water-purification devices because they are made with inexpensive and widely available materials.

• Delete the comma after Furthermore

• Change than to then

• Change they are to it is

• Change widely to wildly

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

CCSS.RI.8.5

What change should be made in sentence 27?

(27) The diversity of environments’ on Earth presents design challenges that have put Gan and the other engineers to the test.

• Change diversity to divercity

• Delete the apostrophe after environments

• Change presents to presenting

• Change have to has

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

CCSS.RI.8.3

What change is needed in sentence 29?

(29) The solar water purifier can filter salt water to make it drinkable, however, the salt left behind quickly builds up and hinders the process.

• Change can to could

• Change the comma after drinkable to a semicolon

• Change quickly to quick

• Change process to prosess

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

CCSS.RI.8.5

What change needs to be made in sentence 33?

(33) Soon, drinkable water will be purified and assessible where it is needed.

• Delete the comma after Soon

• Change will be to will have been

• Change purified to purifying

• Change assessible to accessible

Tags

CCSS.L.4.1B

CCSS.L.5.1.B-D

CCSS.L.5.1B

CCSS.L.5.1C

CCSS.L.5.1D