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LJ Create STEM Shop

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We provide a range of free, and low-cost STEM resources for schools and further education. Our resources include theory presentations, activity sheets, information fact files, and informative posters for your classroom.

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We provide a range of free, and low-cost STEM resources for schools and further education. Our resources include theory presentations, activity sheets, information fact files, and informative posters for your classroom.
The Periodic Table of Elements
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The Periodic Table of Elements

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The Periodic Table is a list of all the different elements. The elements are categorised into groups that have similar properties. The elements are listed in order of their atomic number. This is the number of protons in the nucleus of each atom. The atomic mass of the most abundant isotope of each element is also shown on the table. The elements are grouped as Alkali Metals, Alkaline Earth Metals, Transition Metals, Holgens and Nobel Gases. The table shows the symbol, element name, atomic number, atomic symbol and realtive atomic mass.
Acids and Bases - Strong and Weak Acids and Bases
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Acids and Bases - Strong and Weak Acids and Bases

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A presentation suitable for KS4 looking at strong and weak acids and bases. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore the difference between strong and weak acids and bases. Main Skills: Interpret written text, diagrams, tables and chemical equations. Duration: Approximately 30 mins 12 slides covering: • Strong Acids and Bases • Strong Bases • Weak Acids and Bases • Acids and Bases Strengths
Atomic Structure - Thompson and the Properties of the Electron
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Atomic Structure - Thompson and the Properties of the Electron

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A presentation suitable for KS4 looking at Thompson and the properties of the electron. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore Thompson’s contribution to the concept of atomic structure. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 14 slides covering: • Cathode Rays • Investigation of Cathode Rays • What Could the Cathode Rays be? • J J Thompson’s Experiment • J J Thompson’s Conclusions
Scientific Methodology - Evaluation of Scientific Explanations
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Scientific Methodology - Evaluation of Scientific Explanations

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A presentation suitable for KS4 looking at evaluation of scientific explanations. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore how to evaluate scientific explanations. Main Skills: Interpret written text, diagrams, charts and graphs, make decisions and predict outcomes. Duration: Approximately 45 mins 40 slides covering: • Evaluation Methods • Using Empirical Evidence • Using Logical Reasoning • Using Experimental Testing • Observational Testing • Examining All Sides of Evidence
The Carbon Cycle
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The Carbon Cycle

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A presentation suitable for KS4 looking at the flow of the carbon cycle and the consequences of disrupting the carbon cycle. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore the flow of matter through the carbon cycle. Explore the consequences of disrupting the carbon cycle. Main Skills: Interpret written text, make decisions and predict outcomes. Duration: 30 mins 23 slides covering: • Nutrient Cycles • Upsetting the Balance • Carbon • Overview of the Carbon Cycle • The Carbon Dioxide Balance • Upsetting the CO2 Balance • The Greenhouse Effect and Global Warming Assessment Sheet - Word Document based assessment includes questions that students should be able to answer directly from the presentation, or by applying the information from the presentation. The Teachers Guide provides the correct answers and solutions to questions in the assessment.
Scientific Methodology - Scientific Theories
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Scientific Methodology - Scientific Theories

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A presentation suitable for KS4 looking at scientific theories. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore the difference between hypotheses and theories. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 23 slides covering: • From Hypothesis to Theory • Development of Scientific Theories • Example 1: Cold Fusion • Example 2: The Expanding Universe
Acids and Bases - pH Scale
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Acids and Bases - pH Scale

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A presentation suitable for KS4 looking at acids and bases. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore how to measure the strength of acids and bases. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 24 slides covering: • pH Scale • pH Calculations - Strong Acids • pH Calculations - Strong Bases • Relationship Between pH and pOH • Measuring pH
Periodic Table - Development of the Periodic Table
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Periodic Table - Development of the Periodic Table

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A presentation suitable for KS4 looking at the development of the periodic table. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore how the periodic table was developed. Main Skills: Interpret written text and diagrams. Duration: Approximately 45 mins 26 slides covering: • Discovery of Elements • Early Attempts to Group Elements • Dobereiner’s Triads • Other Theories – The Telluric Spiral • Other Theories – Newlands’ Octaves • Mendeleev and Meyer • Mendeleev • Physical and Chemical Properties • Post Mendeleev Developments
Atomic Structure - Bohr's Nuclear Atom
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Atomic Structure - Bohr's Nuclear Atom

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A presentation suitable for KS4 looking at Bohr’s nuclear atom structure. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore Bohr’s theory of electron orbits. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 19 slides covering: • Bohr’s Assumptions • Bohr’s Quantum Hypothesis • Electron Shells • Excited and Ionized • Energy Changes for Excited Electrons • Link to Line Spectra
Acids and Bases - Types of Reaction
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Acids and Bases - Types of Reaction

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A presentation suitable for KS4 looking at types of reaction. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Differentiate among acid/base, precipitation and redox reactions. Main Skills: Interpret written text, diagrams, charts and chemical equations. Duration: Approximately 45 mins 28 slides covering: • Acid/Base Reactions • Precipitation Reactions • Solubility Rules • Redox Reactions • Differentiate
Atomic Structure - Waves and Spectra
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Atomic Structure - Waves and Spectra

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A presentation suitable for KS4 looking at waves and spectra. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Calculate frequency, wavelength and energy of electromagnetic waves. Main Skills: Interpret written text and diagrams and perform calculations. Duration: Approximately 45 mins 32 slides covering: • Electromagnetic Spectra • Features of Electromagnetic Waves • Speed of Electromagnetic Waves • Speed, Wavelength and Frequency • Energy and Frequency • Max Planck and Albert Einstein • Quantum of Energy • Types of Spectra • Emission Spectra • Quantum of Energy • Other Emission Spectra • Absorption Spectra
Atomic Structure - Dalton's Atomic Theory
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Atomic Structure - Dalton's Atomic Theory

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A presentation suitable for KS4 looking at Dalton’s atomic theory. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore the contribution of Dalton to the development of atomic structure theory. Main Skills: Interpret written text and diagrams. Duration: Approximately 20 mins 14 slides covering: • Ancient Greek Theories • Dalton’s Postulates • Dalton’s Other Postulates • Dalton’s Experimentation • The Legacy of Dalton
Atomic Structure - Electron Configuration
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Atomic Structure - Electron Configuration

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A presentation suitable for KS4 looking at electron configuration. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore how electrons are configured around the nucleus. Main Skills: Interpret written text and diagrams. Duration: Approximately 45 mins 28 slides covering: • Energy Levels and Number of Electrons • Energy Levels and Sub-levels • Energies of Sub-levels • Information from the Periodic Table • Lewis Valence Electron Dot Structure
Atomic Structure - Isotopes and Atomic Mass
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Atomic Structure - Isotopes and Atomic Mass

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A presentation suitable for KS4 looking at isotopes and atomic mass. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore how isotopes and their abundance affect the atomic mass of an element. Main Skills: Interpret written text, diagrams, tables and perform calculations. Duration: Approximately 30 mins 15 slides covering: • Iron • Abundance of Each Isotope of Iron • Calculation of Atomic Mass Number • Calculation of Isotopic Composition
Periodic Table - Physical Trends in the Periodic Table
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Periodic Table - Physical Trends in the Periodic Table

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A presentation suitable for KS4 looking at the physical trends in the periodic table. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore some trends in the periodic table. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 18 slides covering: • Atomic Radius • Ionic Radius • Electronegativity • Ionization Energy • Trends
Acids and Bases - Introduction to Acids and Bases
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Acids and Bases - Introduction to Acids and Bases

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A presentation suitable for KS4 looking at acids and bases. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore acids and bases. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 25 slides covering: • Theories of Acids and Bases • Amphoteric Substances • Lewis Model • Neutralisation
Atomic Structure - Rutherford's Nuclear Atom
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Atomic Structure - Rutherford's Nuclear Atom

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A presentation suitable for KS4 looking at Rutherford’s nuclear atom. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore the contribution of Rutherford to the understanding of atomic structure. Main Skills: Interpret written text and diagrams. Duration: Approximately 30 mins 13 slides covering: • Rutherford’s Experiment • Rutherford’s Results • The Nuclear Atom
Scientific Methodology - Planning Descriptive Investigations
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Scientific Methodology - Planning Descriptive Investigations

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A presentation suitable for KS4 looking at planning descriptive investigations. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Find out how to plan descriptive investigations. Main Skills: Interpret written text, make decisions and predict outcomes. Duration: Approximately 45 mins 30 slides covering: • Investigations • Descriptive Investigations • Planning • Habitat Investigation • Equipment • Using a Journal • Collecting Data • Writing a Report
Scientific Methodology - Planning Investigations
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Scientific Methodology - Planning Investigations

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A presentation suitable for KS4 looking at planning investigations. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Learning Objective(s): Explore investigative procedures to enable you to plan your own investigations. Main Skills: Interpret written text, make decisions and predict outcomes. Duration: Approximately 45 mins 34 slides covering: • Asking Questions • Preparing for Investigations • Variables • Preparing Equipment • Equipment - Scientific Glassware • Equipment - Electronic Balances • Equipment - Consumable Chemicals • Equipment - Technological (Calculators, Probes and Computers)