62 labs. 35 cases. 62 ready for a full lesson.

In December, London is dark by late afternoon while Sydney is in high summer. The Earth is not closer to the Sun in July.

Frost on a window at 07:00 in Leeds is sunlight already on the school roof in Berlin. The Sun did not jump. The planet turned.

A full Moon over Yosemite is the same geometry a student sees from Snowdonia: the Moon is opposite the Sun, not a different Moon.

A cut apple is a bad model of Earth: the ‘skin’ would be thinner than the apple’s, and the outer core is liquid metal.

Holderness loses metres of till each year; the Himalaya gain millimetres of rock. Both are plates doing different jobs at their edges.

A GCSE map question is a hill wearing a disguise. The spur and the valley are the same lines, bending opposite ways.

A Lake District beck in spate and the Mississippi in flood are the same machine at different stations: steep and narrow, then lazy and wide.

A blackout after a blizzard is weather. The reason there is snow to melt into the reservoir is a closed budget of stores and transfers.

Eight planets, one star. Distances are the lie a classroom model always tells — we exaggerate so you can see them.

The solar constant is a number. Latitude is why a playground in London and one in Nairobi disagree.

Powers of ten: Earth, then the system, then the local star field. Keep it short. You cannot see a galaxy in one glance honestly.

A spiral, not a calendar. Units in Ma. Life and continents are marks, not a cartoon parade.

Umbra and penumbra are cones. The Moon’s 5° tilt is why most months miss.

Two bulges. Spring and neap are alignment, not emotion.

A dome over a marked horizon. Date and latitude write the path. Noon altitude and day length fall out.

250 Ma the pieces fit. Fossils agree. The ocean is not a static floor continents plough through.

Hawaii and Yellowstone are holes the plate is sliding over — not the same as a plate edge.

Magnetic stripes are a tape recorder. New crust at the ridge, older away.

Weather lives in a thin film. The rest of the stack is overhead, not climate.

The ground, not the air, takes the Sun’s punch first.

A coastal school feels the sea breeze at last period for a reason.

Air starts downhill on the pressure slope. Earth then twists the path.

One cell would be the textbook. Three cells are the planet we have.

A cold front is a wedge, not a line on a TV map.

A midlatitude cyclone is a spinning comma of fronts, not a hurricane.

Köppen is a map of plants pretending to be a map of weather. The tiles are biomes with a temperature–rain story.

Click the divide. Source, tributary, confluence, mouth — one budget with a rim.

Rain is the input. The river’s reply has a rising limb, a peak, a lag, a falling limb.

A UK upland nival/pluvial mix vs the Mississippi: the same year, different graphs.

Gyres are the loops. The Gulf Stream is a warm ribbon the UK notices in the air, not as a miracle heater of every garden.

Density is colour. Cold salty water sinks. The conveyor is slow and global.

Fast stores and slow stores. The fossil-fuel tap is a human transfer from slow to fast.

The Walker cell can flip. El Niño is a warm pool shift, not a personality. UK weather language stays honest.

A mountain is not a hill with ambition. Height, slope, and a flat top are different machines.

A waterfall is a nick point walking upstream.

When the water slows, the load sits down: slip-off slope, levée, floodplain, delta, estuary.

A more aggressive neighbour can steal a headwater. The elbow is the scar.

Constructive waves build. Destructive waves take. Longshore drift is the conveyor. Cave–arch–stack–stump is the headland’s life.

Ice is a river that can be a kilometre thick. It leaves a cirque, an arête, a horn, a U, and a pile of till.

Limestone does not just break. It dissolves along joints: pavement, swallow hole, cave.

Rocks bend or they break. Anticline, syncline, then the three fault slips.

Yardangs are carved. Barchans are built. Wind is a sculptor where vegetation is thin.

Igneous, sedimentary, metamorphic. Arrows, not a one-way ladder. Temperature and pressure bias the path.

O A E B C R — a stack, not dirt. Compare brown earth, mollisol, oxisol.

Sand, silt, clay. Plot a sample. Name the class. Loam is a place on the triangle, not a brand.

Mechanical, chemical, biological — three blocks, side by side, not a ranking of virtue.

Rain splash, rill, wind. Vegetation on, the A horizon stays. Vegetation off, it leaves.

Focus is in the rock. Epicentre is the map dot. P, then S, then the surface wave that does the damage in town.

Viscosity is the plot. Shield, strato, rift — three shapes from one slider.

Seafloor slip lifts a water column. In deep water the wave is fast and low. At the coast it stands up.

Eye, eyewall, rainbands. Warm sea is the fuel. A UK depression is usually a different machine.

Latitude is how far from the equator. Longitude is how far from Greenwich. Together they are an address, not a decoration.

Peel an orange and the skin tears. Every world map is a compromise. Greenland is the giveaway.

An OS six-figure reference is a 100 m square, not a pin. Eastings then northings. Along the corridor, up the stairs.

Holderness till does not wait for a wave. After rain the cliff rotates on a curved shear and the toe shoves the beach.

The Lake District is wet on the west. Penrith, just over the ridge, is drier. The mountain is a barrier, not a cloud factory.

A Chalk well in Yorkshire and an Ogallala centre-pivot in Kansas both drink a store you cannot see. The water table is a surface, not a underground lake.

Scotland is still rising after the ice. Hudson Bay is still rising too. The crust floats. Load it, it sinks. Unload it, it comes back.

The Atlantic is opening. One day it will close. The Caledonides and the Appalachians are an older ocean that already did.

One Yorkshire hillside, four soils. Crest is thin and dry. Toe is thick and wet. The hill is the factory.

The Cairngorms still carry freeze–thaw scars. Alaska still has ice wedges growing. Cold without a glacier is its own factory.

The 1953 North Sea flood was wind piling water onto a shelf. Katrina’s surge was the same machine on the Gulf. It is not a tsunami.