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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 16 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 clear mountain stream, A salt marsh by the sea, A lake in the hills, A rock pool on the beach

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

Sort: A very salty lake in a hot desert, A chunk of ice broken off a glacier, 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 spring bubbling out of a hillside, Waves breaking on the shore, The open ocean, A garden pond

Fresh waterSalt water

LessonPrint · 2-ESS2-3 · Set 16 · free to copy for classroom use

Answer key — Fresh or Salty?

Set 16. Prints on its own sheet.

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