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Fresh or Salty? is a free printable Grade 2 science worksheet on identifying where fresh water and salt water are found, aligned to NGSS performance expectation 2-ESS2-3. It prints 3 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 18 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Fresh or Salty?

2-ESS2-3

NameDate

Sort each one into fresh water or salt water.

1.Sort each one: Fresh water or Salt water?

Sort: A salt marsh by the sea, A spring bubbling out of a hillside, A clear mountain stream, The water in a seaside bay

Fresh waterSalt water
2.Sort each one: Fresh water or Salt water?

Sort: A rock pool on the beach, A lake in the hills, A garden pond, Sea spray on a windy beach

Fresh waterSalt water
3.Sort each one: Fresh water or Salt water?

Sort: Waves breaking on the shore, The open ocean, Raindrops falling on a window, A cloudy brown river after a storm

Fresh waterSalt water

LessonPrint · 2-ESS2-3 · Set 18 · free to copy for classroom use

Answer key — Fresh or Salty?

Set 18. Prints on its own sheet.

  1. 1.1. A clear mountain stream — Fresh water 2. A salt marsh by the sea — Salt water 3. A spring bubbling out of a hillside — Fresh water 4. The water in a seaside bay — Salt water
  2. 2.1. A garden pond — Fresh water 2. A lake in the hills — Fresh water 3. A rock pool on the beach — Salt water 4. Sea spray on a windy beach — Salt water
  3. 3.1. A cloudy brown river after a storm — Fresh water 2. Raindrops falling on a window — Fresh water 3. The open ocean — Salt water 4. Waves breaking on the shore — Salt water

Last reviewed 2026-09-05. Aligned to 2-ESS2-3 of the Next Generation Science Standards.