Textbook-style dimensional analysis (factor-label) worksheets for high school chemistry: clear notes, 30 differentiated exercises and fully worked answer keys. What’s inside (12 pages) Textbook-style notes: conversion factors, chaining factors, squared and cubed units, with key points, worked examples and common mistakes Version A (10 exercises): one-step conversions Version B (10 exercises): multi-step conversions Version C (10 exercises): lab and chemistry applications Fully worked answer keys for every exercise Teacher notes with guidance on which version suits which class Why teachers use it Quiet differentiation: student pages have no level labels, only a small A/B/C code in the footer Clean, textbook-quality layout that prints well in black and white Made by a chemist; every answer is calculated and checked for correct significant figures Works for homework, stations, sub plans or review Suitable for ages 14 to 18: high school chemistry (Grades 9–12) and international schools. Printable PDF. Looking for more? A low-cost Challenge Pack with six real-world problems is available as an add-on to this set in the Opalchemy shop.

Six real-world dimensional analysis problems for high school chemistry, with fully worked solutions. A low-cost add-on for early finishers and honors classes. What’s inside (5 pages) Six applied problems: Sunlight’s journey; A year of heartbeats; Hospital drip; A gold bar; Painting a wall; A dripping faucet Space to work on every page Fully worked answer key Great for Extension for early finishers Partner problem solving or warm-ups Honors or advanced chemistry homework Every problem uses only the skills from the main set; the challenge is in reading the situation and choosing the path, not in new mathematics. Printable PDF, black-and-white friendly. This pack is an add-on to the full “Dimensional Analysis Worksheets and Notes” set (textbook-style notes, 30 differentiated exercises and worked keys) in the Opalchemy shop.

60 mole conversion practice problems for high school chemistry, with a one-page answer key. Pure practice: molar mass, grams, moles, particles and atoms inside compounds. What’s inside Part A (10): molar mass Part B (20): grams ↔ moles Part C (10): moles ↔ particles (Avogadro’s number) Part D (10): grams ↔ particles Part E (10): atoms inside a compound Reference page: mole map, atomic masses, which particle to count One-page answer key, rounded to the correct significant figures Student progress tracker Great for Homework and independent practice Review before a quiz or test Sub plans and early finishers No notes and no long solutions, just plenty of problems and the final answers so students can check themselves. Textbook-style layout that prints well in black and white. Made by a chemist; every answer is calculated and checked. Suitable for ages 14 to 18: high school chemistry (Grades 10–12) and international schools. Printable PDF. Pairs with the “Molar Mass and Mole Conversion Worksheets” set (textbook-style notes and fully worked keys) in the Opalchemy shop.

Textbook-style molar mass and mole conversion worksheets for high school chemistry: clear notes, 30 differentiated exercises and fully worked answer keys. What’s inside (12 pages) Textbook-style notes: the mole, molar mass, the mole map, with key points, worked examples and common mistakes Version A (10 exercises): molar mass Version B (10 exercises): one-step mole conversions Version C (10 exercises): multi-step: grams ↔ moles ↔ particles Fully worked answer keys for every exercise Teacher notes with guidance on which version suits which class Why teachers use it Quiet differentiation: student pages have no level labels, only a small A/B/C code in the footer Clean, textbook-quality layout that prints well in black and white Made by a chemist; every answer is calculated and checked for correct significant figures Works for homework, stations, sub plans or review Suitable for ages 14 to 18: high school chemistry (Grades 10–12 · Chemistry & Honors) and international schools. Printable PDF. Looking for more? A low-cost Challenge Pack with six real-world problems is available as an add-on to this set in the Opalchemy shop.

Six real-world molar mass & moles problems for high school chemistry, with fully worked solutions. A low-cost add-on for early finishers and honors classes. What’s inside (5 pages) Six applied problems: Aluminum or iron?; A sugar cube; A bottle of water; Zinc in a penny; Signing your name; A cup of coffee Space to work on every page Fully worked answer key Great for Extension for early finishers Partner problem solving or warm-ups Honors or advanced chemistry homework Every problem uses only the skills from the main set; the challenge is in reading the situation and choosing the path, not in new mathematics. Printable PDF, black-and-white friendly. This pack is an add-on to the full “Molar Mass and Mole Conversion Worksheets” set (textbook-style notes, 30 differentiated exercises and worked keys) in the Opalchemy shop.

Textbook-style significant figures and scientific notation worksheets for high school chemistry: clear notes, 30 differentiated exercises and worked keys. What’s inside (11 pages) 2 pages of textbook-style notes: counting significant figures, scientific notation and rounding, and precision in calculations, with key points, worked examples, common mistakes and a quick check Version A (10 exercises): counting significant figures, including exact numbers Version B (10 exercises): scientific notation both ways and rounding Version C (10 exercises): calculations with the correct precision, using lab-style data Fully worked answer keys for every exercise Teacher notes with guidance on which version suits which class Why teachers use it Quiet differentiation: student pages have no level labels, only a small A/B/C code in the footer Clean, textbook-quality layout that prints well in black and white Made by a chemist, with every answer checked for correct significant figures Works for homework, stations, sub plans, review or a skills unit at the start of the year Suitable for ages 14 to 18: high school chemistry (grades 9-12), GCSE and A-level chemistry, and international schools. Printable PDF. Want to try before you buy? Download the free Significant Figures Challenge Problems from the Opalchemy shop.

A free 15-problem sample of mole conversion practice for high school chemistry, with answers. Three problems from each part of the full 60-problem drill. What’s inside 15 mixed problems: molar mass, grams ↔ moles, moles ↔ particles, grams ↔ particles, atoms inside a compound Reference page: mole map, atomic masses, which particle to count Answer key Great for Homework and independent practice Review before a quiz or test Sub plans and early finishers No notes and no long solutions, just plenty of problems and the final answers so students can check themselves. Textbook-style layout that prints well in black and white. Made by a chemist; every answer is calculated and checked. Suitable for ages 14 to 18: high school chemistry (Grades 10–12) and international schools. Printable PDF. Like it? The full drill, “Mole Conversions Practice: 60 Problems”, is in the Opalchemy shop.

Six real-world significant figure problems for high school chemistry, with fully worked solutions. Free sample of Opalchemy’s textbook-style worksheets. What’s inside (5 pages) 6 applied problems where precision rules collide: mixed operations, subtraction that loses digits, percent error, exact counts and comparing measurements Space to work on every page Fully worked answer key Great for Extension for early finishers Partner problem solving or warm-ups Honors or advanced chemistry homework Every problem uses only standard significant-figure rules; the challenge is in reading the situation, not in new mathematics. Printable PDF, black-and-white friendly. This pack is an add-on to the full Significant Figures & Scientific Notation set (textbook-style notes, 30 differentiated exercises and worked keys) in the Opalchemy shop.