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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 23 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 garden pond, A salt marsh by the sea, A very salty lake in a hot desert, A clear mountain stream

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

Sort: Waves breaking on the shore, A spring bubbling out of a hillside, Raindrops falling on a window, Sea spray on a windy beach

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

Sort: A lake in the hills, A rock pool on the beach, The open ocean, A chunk of ice broken off a glacier

Fresh waterSalt water

LessonPrint · 2-ESS2-3 · Set 23 · free to copy for classroom use

Answer key — Fresh or Salty?

Set 23. Prints on its own sheet.

  1. 1.1. A clear mountain stream — Fresh water 2. A garden pond — Fresh water 3. A salt marsh by the sea — Salt water 4. A very salty lake in a hot desert — Salt water
  2. 2.1. A spring bubbling out of a hillside — Fresh water 2. Raindrops falling on a window — Fresh water 3. Sea spray on a windy beach — Salt water 4. Waves breaking on the shore — Salt water
  3. 3.1. A chunk of ice broken off a glacier — Fresh water 2. A lake in the hills — Fresh water 3. A rock pool on the beach — Salt water 4. The open ocean — Salt water

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