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Our Rock Collection is a free printable Grade 2 science worksheet on describing and sorting rocks by size, color and texture, aligned to NGSS performance expectation 2-PS1-1. It prints 7 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 21 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.

Our Rock Collection

2-PS1-1

NameDate

Read the record, then answer the questions.

1.Read the record, then answer the questions.

Our Rock Collection

A table the class made of six rocks brought in from home, looked at with a hand lens. SIX ROCKS Rock 1: as big as a fist, gray, rough, with sparkly specks Rock 2: as small as a grape, white, smooth and round Rock 3: as flat as a cookie, dark gray, smooth, splits into layers Rock 4: as big as an egg, pale gray, full of tiny holes, very light to hold Rock 5: as big as a plum, red-brown, gritty like sandpaper Rock 6: as small as a marble, black, smooth and shiny We looked at the size, color and texture of every rock.

  1. 1. What color was rock 5?
  2. 2. Why did the class use a hand lens?
  3. 3. If you sorted the rocks into rough and smooth, where would rock 1 go?
  4. 4. Which rock was full of tiny holes?
2.How could you sort ten rocks into two groups by texture?
  • A.Big ones and small ones
  • B.Gray ones and white ones
  • C.Rough ones and smooth ones
3.A rock feels gritty, like sandpaper. What is it probably made of?
  • A.Glass
  • B.Metal
  • C.Lots of small grains stuck together
4.Which of these tells you a rock's size?
  • A.As big as an egg
  • B.Shiny
  • C.Bumpy
5.What is the best way to describe a rock to a friend who cannot see it?
  • A.Say its size, its color and how it feels
  • B.Say that it is nice
  • C.Say that it is a rock
6.Why are pebbles from a stream often smooth and round?
  • A.They grew that way
  • B.People polished them
  • C.The water has rolled them and worn their corners off
7.Which tool helps you see the tiny grains in a rock?
  • A.A hand lens
  • B.A ruler
  • C.A spoon

LessonPrint · 2-PS1-1 · Set 21 · free to copy for classroom use

Answer key — Our Rock Collection

Set 21. Prints on its own sheet.

  1. 1.1. Red-brown. 2. To see small details, like the sparkly specks in rock 1. 3. With the rough rocks. 4. Rock 4, which was very light to hold.
  2. 2.Rough ones and smooth ones
  3. 3.Lots of small grains stuck together
  4. 4.As big as an egg
  5. 5.Say its size, its color and how it feels
  6. 6.The water has rolled them and worn their corners off
  7. 7.A hand lens

Last reviewed 2026-09-05. Aligned to 2-PS1-1 of the Next Generation Science Standards.