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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 10 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. Why did the class use a hand lens?
  2. 2. Which rock was the biggest?
  3. 3. Which rocks were smooth?
  4. 4. Which rock was full of tiny holes?
2.Which word describes a rock's color?
  • A.Gritty
  • B.Gray
  • C.Smooth
3.Which word describes how a rock feels?
  • A.Rough
  • B.Big
  • C.Red
4.Why are pebbles from a stream often smooth and round?
  • A.The water has rolled them and worn their corners off
  • B.They grew that way
  • C.People polished them
5.Which tool helps you see the tiny grains in a rock?
  • A.A hand lens
  • B.A ruler
  • C.A spoon
6.Two rocks are the same color. How else could you tell them apart?
  • A.By what day you found them
  • B.By how they feel, or by their size
  • C.You cannot tell them apart
7.A rock feels gritty, like sandpaper. What is it probably made of?
  • A.Lots of small grains stuck together
  • B.Metal
  • C.Glass

LessonPrint · 2-PS1-1 · Set 10 · free to copy for classroom use

Answer key — Our Rock Collection

Set 10. Prints on its own sheet.

  1. 1.1. To see small details, like the sparkly specks in rock 1. 2. Rock 1, as big as a fist. 3. Rocks 2, 3 and 6. 4. Rock 4, which was very light to hold.
  2. 2.Gray
  3. 3.Rough
  4. 4.The water has rolled them and worn their corners off
  5. 5.A hand lens
  6. 6.By how they feel, or by their size
  7. 7.Lots of small grains stuck together

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