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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 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.

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 look at the same three things for every rock?
  3. 3. Which rock was full of tiny holes?
  4. 4. If you sorted the rocks into rough and smooth, where would rock 1 go?
2.What is the best way to describe a rock to a friend who cannot see it?
  • A.Say that it is a rock
  • B.Say its size, its color and how it feels
  • C.Say that it is nice
3.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
4.Which word describes a rock's color?
  • A.Smooth
  • B.Gritty
  • C.Gray
5.How could you sort ten rocks into two groups by texture?
  • A.Gray ones and white ones
  • B.Rough ones and smooth ones
  • C.Big ones and small ones
6.A rock has sparkly specks in it. Which sense did you use to notice that?
  • A.Hearing
  • B.Sight
  • C.Smell
7.A rock feels gritty, like sandpaper. What is it probably made of?
  • A.Metal
  • B.Lots of small grains stuck together
  • C.Glass

LessonPrint · 2-PS1-1 · Set 18 · free to copy for classroom use

Answer key — Our Rock Collection

Set 18. Prints on its own sheet.

  1. 1.1. Red-brown. 2. So every rock could be compared with the others and sorted. 3. Rock 4, which was very light to hold. 4. With the rough rocks.
  2. 2.Say its size, its color and how it feels
  3. 3.The water has rolled them and worn their corners off
  4. 4.Gray
  5. 5.Rough ones and smooth ones
  6. 6.Sight
  7. 7.Lots of small grains stuck together

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