📘 Teacher's Guide — Grades 6 & 7

Science Games Library · 14 topics · 42 games · with 🖥️ Class Mode

Interactive STEM Laboratory

🔬 Hands-on Virtual Science Labs & Lab Procedures

Access step-by-step experiment procedures, real-time data loggers, auto-plotting graphs, and printable student lab reports.

📋 Lab Procedures 🚀 Launch Virtual Labs

This guide accompanies the Grade 6 (6 topics, 18 games) and Grade 7 (8 topics, 24 games) science games in this library. Each game is a self-contained HTML file that runs in any modern browser — no internet or installation needed. Every game has a 🖥️ Class Mode button (top-right) that enlarges the interface for a smart board or projector.

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How the games are structured. Each topic has exactly 3 games: Game 1 is a single-player discovery/experiment, Game 2 is a single-player classification puzzle (drag-and-drop or tap-and-place), and Game 3 is a collaborative team game (2–3 players) where the goal only succeeds when all players' answers are correct together.

Grade 6 · Topic 1 — Circulatory System (3 games)

🎯 Key ideas

The heart pumps blood; arteries carry blood away from the heart, veins return it; the body has one circulation through the lungs (for oxygen) and one through the body. Blood carries oxygen, nutrients and waste in plasma, red blood cells (carry oxygen), white blood cells (fight infection) and platelets (clotting).

Game	What it teaches	How to play	Key answers
1 · Bloodstream Highway	The route blood travels around the body.	A guided adventure — respond to prompts as blood travels.	Deoxygenated blood → heart → lungs (gains O₂) → heart → body (gives O₂).
2 · Heart Route Puzzle	Order the blood's journey and match vessels.	Drag/tap cards into the correct vessels & order.	Artery = away from heart; vein = toward the heart; capillary = where gases swap.
3 · Red Cell Rescue Team	Cooperative transport of oxygen.	Each player guides a part; all must work together.	Oxygen picks up in the lungs, drops off at body cells.

Classroom tip: Have students place a hand on their chest and count heartbeats before and after jumping jacks to link the game to a real observation.

Grade 6 · Topic 2 — Human Diseases (3 games)

🎯 Key ideas

Communicable diseases spread from person to person (pathogens: bacteria, viruses, fungi, protists). Non-communicable diseases (e.g. heart disease, diabetes) are not spread. Defence: skin, white blood cells, antibodies, vaccinations, hygiene, and medicines (antibiotics treat bacteria, not viruses).

Game	What it teaches	How to play	Key answers
1 · Outbreak Investigator	Identify diseases and how they spread.	Investigate cases and classify communicable vs non-communicable.	Cold/flu/chickenpox = virus; sore throat = bacteria; some cancer/heart disease = non-communicable.
2 · Disease Defense Puzzle	Match pathogens to diseases & defences.	Drag/tap cards to disease and defence boxes.	Vaccination prevents; antibiotics kill bacteria; hygiene stops spread.
3 · Health Defense Squad	Coordinate defences to protect a town.	Each player manages one defence; all must work together.	Defences must be applied to the right threat at the right time.

Grade 6 · Topic 3 — Material Properties & Change (3 games)

🎯 Key ideas

Materials have properties (hardness, strength, flexibility, waterproof, transparent, conductivity). Some changes are reversible (physical — melting, freezing, dissolving) and some irreversible (chemical — burning, cooking, rusting) where new materials form.

Game	What it teaches	How to play	Key answers
1 · Material Lab Explorer	Test and identify material properties.	Run 5 test stages and pick the property.	Waterproof = doesn't absorb water; transparent = see through; strong = holds loads.
2 · Material Sort Puzzle	Classify materials by property.	Drag/tap cards into groups.	Metal = conductor/shiny; wood/plastic = insulator; glass = transparent or brittle.
3 · Material Team Mission	Choose the right material for a job together.	Each engineer picks material for one job; all correct together.	Match property to function (e.g. insulator handle, strong frame, transparent window).

Note: "Physical vs chemical change" is the classic tricky concept — students often call a reversible change "chemical." Ask: did a NEW substance form?

Grade 6 · Topic 4 — Thermal & Electrical Conductors (3 games)

🎯 Key ideas

Conductors (mostly metals) let heat/electrical energy pass easily; insulators (wood, plastic, rubber, glass) do not. A circuit must be complete (a loop) for current to flow; electrical conductors carry current, and switches open/close the circuit.

Game	What it teaches	How to play	Key answers
1 · Circuit Builder Adventure	Build working circuits.	Complete 5 missions building circuits with a live SVG.	Battery, wires, switch, bulb in a loop.
2 · Conductor Sorter	Sort conductors vs insulators.	Drag/tap cards into conductor/insulator boxes.	Copper, iron, aluminium = conductor; wood, rubber, plastic = insulator.
3 · Power Grid Team	Connect components to power a grid together.	Each player connects one component; circuit works only when all correct.	A complete loop with a power source is required.

Grade 6 · Topic 5 — Chemical Reactions (3 games)

🎯 Key ideas

In a chemical reaction, substances change into new substances (often with a fizz, colour change, temperature change, or a new gas/solid). Indicators of a reaction: colour change, gas produced, temperature rise/fall, a new insoluble solid (precipitate). Reactants → products.

Game	What it teaches	How to play	Key answers
1 · Reaction Lab Explorer	Spot signs of a chemical change.	Run 5 experiments: fizzing, rusting, colour change, temperature rise, physical vs chemical.	Fizz (gas), rust (new material), colour change, heat release = chemical clues.
2 · Reaction Matcher	Classify reaction vs physical change and reactions.	Drag/tap sort across 4 rounds.	Burning, rusting, acid-base = chemical; melting/freezing = physical.
3 · Equation Balance Team	Balance a chemical equation.	Each player sets one coefficient; balanced only when atoms match both sides.	e.g. N₂ + 3H₂ → 2NH₃.

Grade 6 · Topic 6 — Rock Cycle (3 games)

🎯 Key ideas

Rocks are igneous (cooled magma), sedimentary (compacted sediment) and metamorphic (changed by heat/pressure). The rock cycle shows how these change into one another over time (weathering, erosion, melting, cooling, pressure).

Game	What it teaches	How to play	Key answers
1 · Rock Cycle Journey	Follow a rock through the whole cycle.	Guided adventure; you ARE a rock grain through animated scenes.	magma → igneous → weathering → sediment → sedimentary → metamorphic → melt.
2 · Rock Type Classifier	Classify rock types and processes.	Drag/tap sort across 4 rounds.	Granite = igneous; limestone = sedimentary; slate = metamorphic.
3 · Rock Cycle Assembly Team	Sequence the cycle together.	Each player picks the process for one conversion; cycle complete only when all correct.	Heat+pressure → metamorphic; melt → magma; cool → igneous.

Grade 6 review idea: Run the three Topic 6 games in a week and then have pupils build a paper "rock cycle wheel" to consolidate.

Grade 6 · Topic 7 — The Human Body Systems (3 games + 1 Journey)

🎯 Key ideas

The human body relies on four major organ systems working in harmony:
• Circulatory System: Heart pumps oxygen-rich blood through arteries to body cells, and veins return deoxygenated blood.
• Respiratory System: Lungs take in O₂ and expel CO₂; gas exchange occurs across alveoli into capillaries.
• Digestive System: Breaks down food into nutrients absorbed through small intestine villi for energy.
• Reproductive System: Specialized cells (sperm & egg) combine to produce offspring and continue human life.

Game / Journey	What it teaches	How to play	Key answers
🧭 Body Systems Expedition	Complete anatomical journey through all 4 systems.	Interactive multi-stop journey with facts and checkpoint questions.	Arteries = away from heart; Alveoli = gas exchange; Small intestine = nutrient absorption.
1 · Body Systems Quest	Diagnose physiological demands (breathing, pumping, energy).	Respond to real-time clinical scenarios and activate systems.	Exercise increases O₂ demand; Small intestine absorbs glucose; Sperm + egg = fertilization.
2 · Human Body Systems Puzzle	Organ-to-system classification and digestive path ordering.	Drag/tap cards into correct systems and sequence the digestive route.	Mouth → Esophagus → Stomach → Small Intestine → Large Intestine.
3 · Body Systems Medical Team	Collaborative 3-player clinical management.	Cardio, Respiratory, and Nutrition specialists coordinate vital signs.	Maintain stable oxygen, heart rate, and glucose during rest, sprint, and recovery.

Classroom tip: Have students trace the path of an oxygen molecule from the air, into the lungs, into the heart, and finally to a leg muscle cell to see how systems connect!

Grade 7 · Topic 1 — Cells & Organisms (3 games)

🎯 Key ideas

The cell is the basic unit of life. Organelles and their jobs: nucleus (control/DNA), cell membrane (gateway), cytoplasm (where reactions happen), mitochondria (energy), ribosomes (make proteins). Plant cells also have chloroplasts (photosynthesis), a cell wall and a large vacuole. Levels of organisation: cell → tissue → organ → system → organism.

Game	What it teaches	How to play	Key answers
1 · Cell Explorer Quest	The function of each organelle.	Tour the cell; match each organelle to its "city job".	Nucleus = control; mitochondria = power; membrane = gate; ribosomes = factories.
2 · Organelle Match Relay	Match organelles to jobs; plant vs animal vs both.	Drag/tap sort across 3 rounds.	Chloroplasts & cell wall = plant; nucleus, mitochondria, membrane = both.
3 · Build a Cell Team	Assemble a working cell together.	Each player places one organelle & its function; cell works only when all correct.	All required organelles must be present and correctly described.

Grade 7 · Topic 2 — Diet & Growth (3 games)

🎯 Key ideas

A balanced diet has carbohydrates (energy), proteins (growth & repair), fats (energy & insulation), vitamins & minerals (health) and fibre & water (digestion & hydration). A growing body needs this balance to develop properly.

Game	What it teaches	How to play	Key answers
1 · Nutrition Mission	Build a balanced plate.	Drag foods into 5 food groups across 4 plates.	Bread/pasta = carbs; chicken/beans = protein; fruit/veg = vitamins & minerals.
2 · Nutrient Classifier	Sort foods by nutrient and healthy choice.	Drag/tap sort across 4 rounds.	Energy foods = carbs; growth = protein; protect = vitamins/veg.
3 · Team Grow	Plan a balanced day of meals together.	Each player leads one nutrient; the plan is healthy only when all meals are balanced.	Every meal needs the right nutrients covered together.

Grade 7 · Topic 3 — Structures & Properties of Materials (3 games)

🎯 Key ideas

Materials have properties: strength, hardness, flexibility, thermal/electrical conductivity, waterproof and transparency. These properties decide what a material is best used for (metal = strong & conducts; wood/plastic/rubber = insulators; glass = transparent).

Game	What it teaches	How to play	Key answers
1 · Material Engineer	Match a structure to the right property.	Design a tower/ruler/jacket/pan handle/window; pick the property that matters.	Strong tower = strength; waterproof jacket = waterproof; pan handle = thermal insulator; window = transparent.
2 · Material Sort	Classify materials & properties.	Drag/tap sort across 4 rounds.	Metals = strong & conductors; glass/ceramic = brittle; rubber/plastic = flexible and insulators.
3 · Bridge Build Team	Build a bridge with the right materials.	Each player picks material for one part; bridge holds only when all correct.	Deck = reinforced concrete; cables = steel; foundations = stone/concrete.

Grade 7 · Topic 4 — Periodic Table (3 games)

🎯 Key ideas

Each element has a symbol (one or two letters), a name and an atomic number (number of protons). The table is arranged in groups (columns) of elements with similar properties: Group 1 alkali metals, Group 17 halogens, Group 18 noble gases, and metals vs non-metals.

Game	What it teaches	How to play	Key answers
1 · Element Explorer	Elements, symbols, atomic number, groups.	Read element cards and identify symbols/groups.	H=hydrogen, O=oxygen, Na=sodium, Au=gold, He=helium.
2 · Element Sorter	Group elements and match names↔symbols.	Drag/tap sort across 4 rounds.	Li/Na = alkali; He/Ar = noble; Cl/F = halogen; Fe/Cu/Al = metals.
3 · Periodic Table Assembly Team	Build the table together.	Name each element then place it in its group; complete only when all correct.	Atomic number = protons; groups have similar properties.

Grade 7 · Topic 5 — The pH Scale (3 games)

🎯 Key ideas

The pH scale runs 0–14. Acids are below 7 (lemon juice, vinegar), neutral is 7 (water), bases/alkalis are above 7 (soap, baking soda). Indicators (universal indicator, litmus) change colour to show acidity, and acids + bases neutralise each other.

Game	What it teaches	How to play	Key answers
1 · pH Lab Explorer	Test everyday substances, read pH.	Dip the indicator, read the animated pH scale, classify.	Lemon juice pH2=acid, water pH7=neutral, soap pH10=base.
2 · pH Sort & Indicator	Sort by pH and match indicator colours.	Drag/tap sort across 4 rounds.	Red/orange=acid, green=neutral, blue/purple=base.
3 · Neutralize the Spill Team	Neutralise a spill together.	Each player owns one step; the spill is safe only when all correct.	Acid + base → neutral (pH 7).

Grade 7 · Topic 6 — Force & Energy (3 games)

🎯 Key ideas

A force is a push or pull. A bigger force → bigger acceleration; a bigger mass needs more force for the same acceleration. Friction/air resistance slow objects. Energy is stored or transferred: kinetic, potential, chemical, thermal, light, sound, electrical. Newton's third law: every action has an equal and opposite reaction.

Game	What it teaches	How to play	Key answers
1 · Force & Motion Mission	Force, mass & motion.	Launch a rocket, change force/mass, observe distance.	More force = more acceleration; more mass = less acceleration.
2 · Energy Transformation Puzzle	Energy stores, types & changes.	Drag/tap sort across 4 rounds.	Kinetic = moving; potential = stored; chemical→thermal+light (burning); potential→kinetic (falling).
3 · Newton's Team Challenge	Solve force problems together.	Each player owns one physics idea; solved only when all correct.	Friction slows; action = equal & opposite reaction.

Grade 7 · Topic 7 — Sound (Grade 7) (3 games)

🎯 Key ideas

Sound is made by vibration. Pitch depends on frequency (faster vibration = higher pitch); loudness depends on amplitude (bigger vibration = louder). Sound needs a medium — it travels fastest in solids, slowest in gases, and not through a vacuum. Echoes/sonar use reflected sound to locate objects.

Game	What it teaches	How to play	Key answers
1 · Sound Lab Explorer	Vibration, frequency, amplitude.	Pluck a string, change frequency & amplitude on a live wave.	Higher frequency = higher pitch; bigger amplitude = louder.
2 · Sound Wave Matcher	Pitch vs loudness, medium vs vacuum.	Drag/tap sort across 4 rounds.	No particles (vacuum) = no sound; solids conduct sound fastest.
3 · Echo Team	Locate objects with sound/sonar.	Send a pulse, read echoes; each locator finds one object together.	Echo = reflected sound → tells distance.

Grade 7 · Topic 8 — Earth in Space & the Solar System (3 games)

🎯 Key ideas

The Sun is a star at the centre. The eight planets orbit in order: Mercury, Venus, Earth, Mars (free space), Jupiter, Saturn, Uranus, Neptune. Planets nearer the Sun orbit faster. Earth's Moon is a rocky satellite that orbits in ~28 days and reflects sunlight.

Game	What it teaches	How to play	Key answers
1 · Solar System Voyage	Planet facts & order.	Travel to each planet; identify it from its facts.	Mercury=nearest; Venus=hottest; Mars=red (iron oxide); Jupiter=largest; Saturn=rings.
2 · Order & Orbit Predictor	Planet order, Sun/Moon/star, orbit speed.	Drag/tap sort across 4 rounds.	Order "My Very Easy Method Just Speeds Up Naming".
3 · Mission Control Team	Plan a space mission together.	Each controller owns destination/fuel/route; launches only when all correct.	Distance to Mars & fuel needs; the Moon is a satellite.

Classroom & Inclusion Tips (Grades 6–7)

Set up a smart-board round: Open Game 3 of any topic, press 🖥️ Class Mode, and have the class take turns being each player. It works great as a whole-class review.

Pair/group the collaborative games — they're designed so no single player can succeed alone, promoting talk and teamwork.
Differentiated support: Pause on any question and ask "why?" — the feedback gives the reasoning, so struggling pupils can still learn from a wrong guess.
Quick starters: Game 2 of any topic is a fast drag-sort — ideal for a 5-minute entry quiz.
Homework: All games are offline and mobile-friendly, so they can be sent home.
Assessment: Each game tracks a score; use the final score and the "perfect round" feedback as a quick check of understanding.
Misconceptions to watch for: chemical vs physical change (Grade 6 T3), conductors vs insulators (Grade 6 T4), plant vs animal cells (Grade 7 T1), and acid/base vs neutral (Grade 7 T5).

Offline note: Everything is self-contained; the only features that need the internet are links out to this guide and the game library hub — the games themselves run fully offline.

The full design plan and per-topic game tables for Grades 5, 6 & 7 are in README.md.