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Two Tries, One Problem is a free printable Kindergarten to Grade 2 science worksheet on comparing test data from two designs, aligned to NGSS performance expectation K-2-ETS1-3. It prints 2 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 1 of 25 · the same problems every time you open this link.

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All 25 sets ask different questions.

Two Tries, One Problem

K-2-ETS1-3

NameDate

Read the record, then answer the questions.

1.Read the record, then answer the questions.

Three Covers Over One Patch

Our test of three covers, each put over the same patch of ground for an hour. THREE COVERS, THE SAME PATCH No cover ............ 30 degrees Thin cloth .......... 25 degrees Thick cardboard .......... 21 degrees Same patch, same hour, same sunny day.

  1. 1. How warm was the patch with no cover?
  2. 2. What was kept the same in this test?
  3. 3. What does this record not tell you?
2.Read the record, then answer the questions.

Two Ramps

Results from testing two ramps our class built to send a car further. TWO RAMPS, THE SAME CAR Ramp A, the low one .... the car went 4 steps Ramp B, the high one ... the car went 9 steps Ramp A was easy to build. Ramp B fell over twice.

  1. 1. Which ramp sent the car further?
  2. 2. What does this record not tell you?
  3. 3. How far did the car go on ramp B?

LessonPrint · K-2-ETS1-3 · Set 1 · free to copy for classroom use

Answer key — Two Tries, One Problem

Set 1. Prints on its own sheet.

  1. 1.1. 30 degrees. 2. The same patch, the same hour and the same sunny day. 3. It does not tell you how much each cover cost.
  2. 2.1. Ramp B, the high one, at 9 steps. 2. It does not tell you how long each ramp took to build. 3. 9 steps.

Questions about Two Tries, One Problem

What does the Two Tries, One Problem worksheet cover?

It practices comparing test data from two designs — 2 questions for Kindergarten to Grade 2, all on NGSS K-2-ETS1-3: Test two designs for the same problem and compare how each performs. The instruction to students is “Read the record, then answer the questions”, and the answer key follows on the next sheet.

Which NGSS performance expectation does Two Tries, One Problem practice?

K-2-ETS1-3, under Engineering Design for Kindergarten to Grade 2. The published performance expectation reads: “Analyze data from tests of two objects designed to solve the same problem to compare the strengths and weaknesses of how each performs.” The worksheet assesses that performance expectation rather than a paraphrase of it.

What age or grade is this worksheet for?

Two Tries, One Problem is written for Kindergarten to Grade 2, typically ages 7-8. It is one of the sheets on K-2-ETS1-3, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Two Tries, One Problem come with an answer key?

Yes. All 2 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Two Tries, One Problem can I print?

25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Two Tries, One Problem free to print and photocopy?

Yes. Two Tries, One Problem, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

Is there a lesson plan to teach K-2-ETS1-3?

Yes — “Two Tries, One Problem” is a 45-minute Kindergarten to Grade 2 plan for K-2-ETS1-3, timed section by section, with the misconceptions to expect and an exit ticket. Two Tries, One Problem is the practice that follows it.

More practice for K-2-ETS1-3

Test two designs for the same problem and compare how each performs.

Teaching this next? Two Tries, One Problem is the 45-minute plan for it, with the misconceptions to expect.

All Kindergarten to Grade 2 worksheets

Last reviewed 2026-09-05. Aligned to K-2-ETS1-3 of the Next Generation Science Standards.