Free crossword covering common elements and compounds and their uses. View free online lessons to help with this activity. Lots of other free science lessons at the Good Science Website.

8-page worksheet for intermediate high school chemistry. Comprehensive worksheet containing a variety of questions, including extension and further research. Covers: Law of Conservation of Mass; steps for writing balanced formula equations; worked example using non-chemistry context; worked chemistry example. Includes a complete answer version. This resource is aligned to the Australian Year 9 Chemistry curriculum, but would be useful for other curriculums as well. A full preview of this resource is available at (copy-paste link): www.goodscienceworksheets.com/writing-balanced-chemical-equations-worksheet.shtml This resource is also part of the following discount bundle: Oxidation Reactions and Balanced Equations [Worksheet Bundle]

Topic: The Bunsen Burner (Junior Chemistry). 12-slide presentation*. Neatly laid out with clear and detailed explanations. Covers parts of the Bunsen burner, procedure for lighting a Bunsen burner and safety rules. Comprehensive enough for self-directed learning, although equally useful as a classroom presentation. Also includes detailed Lesson Plan and Unit Outline. Designed for the Australian National Curriculum: Year 7 Science However, it would be useful for other junior science curriculums as well. *Presentation is in Adobe Acrobat format. View in full screen mode (Ctrl L) and scroll through slides with arrows; Esc to get out of full screen view, navigate through slides using Page Thumbnails on left side of page, just like a PowerPoint presentation. A full preview of this resource is available at: www.goodscienceworksheets.com/bunsen-burner-presentation.shtml Also available as part of various Introduction to Science Bundles: www.goodscienceworksheets.com/PDFs/7au-intro-to-science-bundles.pdf

Topic: Practical Reports (Junior Chemistry). 14-slide presentation*. Neatly laid out with clear and detailed explanations. Covers the format and style of scientific practical reports, with detailed descriptions of the different sections. Comprehensive enough for self-directed learning, although equally useful as a classroom presentation. Also includes a detailed Lesson Plan and Unit Outline. Designed for the Australian National Curriculum: Year 7 Science However, it would be useful for other junior science curriculums as well. *Presentation is in Adobe Acrobat format. View in full screen mode (Ctrl L) and scroll through slides with arrows; Esc to get out of full screen view, navigate through slides using Page Thumbnails on left side of page, just like a PowerPoint presentation. A full preview of this resource is available at: www.goodscienceworksheets.com/practical-reports-presentation.shtml Also available as part of various Introduction to Science Bundles: www.goodscienceworksheets.com/PDFs/7au-intro-to-science-bundles.pdf

Topic: Practical Reports (Junior Chemistry). 1-page worksheet including questions about the structure of a prac report and the types of statements in each section, as well as practice writing in appropriate scientific style. Includes a complete teacher answer version. Also includes a Unit Outline, Topic Summary and Revision Checklist. Designed for the Australian National Curriculum: Year 7 Science However, it would be useful for other junior science curriculums as well. A full preview of this resource is available at: www.goodscienceworksheets.com/practical-reports-worksheet.shtml Also available as part of various Introduction to Science Bundles: www.goodscienceworksheets.com/PDFs/7au-intro-to-science-bundles.pdf

* This presentation is designed to accompany the 9 page worksheet "Percentage Composition" which is also available here. This presentation goes through the theory of percentage and mass composition as well as several worked examples. Slides go step-by-step through the problem-solving process. It also contains mapped diagrams showing all possible questions on this topic and the pathways for approaching each type of problem. Presentation is in Adobe Acrobat format. View in full screen mode and scroll through with arrows just like a PowerPoint presentation.

Research and poster activities for junior high school science. The first is a research activity investigating different branches of science. The second is a poster activity called "I am a scientist". Also contains a Unit Outline for the topic "Branches of Science". Designed for the Australian National Curriculum: Year 7 Science. However, it would be useful for other junior science curriculums as well. A full preview of this resource is available at: www.goodscienceworksheets.com/branches-of-science-activities.shtml Also available as part of various Introduction to Science Bundles: www.goodscienceworksheets.com/PDFs/7au-intro-to-science-bundles.pdf

Worksheet explaining theory behind the Combined Gas Law. Includes worked examples and several practice problems. 5 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/combined-gas-law-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

Worksheet explaining theory behind Gay-Lussac's Gas Law. Includes worked examples and several practice problems. 4 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/gay-lussacs-law-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

Worksheet explaining theory behind the Ideal Gas Law. Includes worked examples and several practice problems. 6 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/ideal-gas-law-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

Worksheet explaining theory behind Boyle's Gas Law. Includes worked examples and several practice problems. 4 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/boyles-law-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

Worksheet explaining theory behind Avogadro's Gas Law. Includes worked examples and several practice problems. 4 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/avogadros-law-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

Set of two worksheets for intermediate high school chemistry (14 pages in total). Comprehensive worksheets containing a variety of questions, including extension and further research. Covers: collision theory; progress of a chemical reaction; factors affecting reaction rate - temperature, concentration, pressure, surface area, stirring and catalysts. Includes complete answer versions. Also includes topic summaries and learning checklists. This resource is aligned to the Australian Year 10 Chemistry curriculum, but would be useful for other curriculums as well. A full preview of this resource is available at (copy-paste link): www.goodscienceworksheets.com/rates-of-chemical-reactions-worksheet.shtml

5-page worksheet for intermediate high school chemistry. Comprehensive worksheet containing a variety of questions, including extension and further research. Covers: subatomic particles: protons, neutrons and electrons, including mass and electric charges. Includes a complete answer version. This resource is aligned to the Australian Year 9 Chemistry curriculum, but would be useful for other curriculums as well. A full preview of this resource is available at (copy-paste link): www.goodscienceworksheets.com/structure-of-atoms-worksheet.shtml This resource is also part of the following discount bundle: Atomic Structure [Worksheet Bundle]

6-page worksheet for intermediate high school chemistry. Comprehensive worksheet containing a variety of questions, including extension and further research. Covers: atoms; elements; isotopes; atomic number; mass number; protons; neutrons; electrons. Includes a complete answer version. This resource is aligned to the Australian Year 9 Chemistry curriculum, but would be useful for other curriculums as well. A full preview of this resource is available at (copy-paste link): www.goodscienceworksheets.com/atomic-number-mass-number-and-isotopes-worksheet.shtml This resource is also part of the following discount bundle: Atomic Structure [Worksheet Bundle]

Worksheet explaining theory behind Molar Volume of Gases. Includes worked examples and several practice problems. 4 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/molar-volume-of-gases-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

Worksheet explaining theory behind Charles' Gas Law. Includes worked examples and several practice problems. 4 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/charles-law-worksheet.shtml * Also available as part of the complete Gas Laws Bundle - save 40% on individual prices.

12-page worksheet for intermediate high school chemistry. Comprehensive worksheet containing a variety of questions, including extension and further research. Covers the following types of chemical reactions: *Combination (synthesis) *Decomposition *Single displacement (single replacement) *Double displacement (double replacement) *Combustion (complete and incomplete) *Redox. Includes a complete answer version. Also includes a Topic Summary and Learning Checklist. This resource is aligned to the Australian Year 10 Chemistry curriculum, but would be useful for other curriculums as well. A full preview of this resource is available at: www.goodscienceworksheets.com/types-of-chemical-reactions-worksheet.shtml

* This workbook is designed to accompany the FREE presentation "Percentage Composition" which is also available here. This workbook goes through the theory of percentage and mass composition as well as several worked examples, which are included in the teacher version. It also contains mapped diagrams showing all possible questions on this topic and the pathways for approaching each type of problem. 9 pages. All answers included. A full preview of this resource is available at: www.goodscienceworksheets.com/percentage-composition-worksheet.shtml