Science · Classes 10
Optical image bench
When does a lens produce a real image, a virtual image or no finite image?
Source context checked · detailed mapping provisionalOpen investigation →Opening your next discovery…
Opening your next discovery…
Mission control
You bring the question. We bring the tools. Choose an investigation, make a prediction and see where the evidence leads.
108 of 108 working labs · all durations are estimates
Explore eleven connected organ systems, inspect enlarged cutaways and test eleven mechanisms with a laboratory notebook.
When does a lens produce a real image, a virtual image or no finite image?
Source context checked · detailed mapping provisionalOpen investigation →How does changing the second medium change a light ray?
Source context checked · detailed mapping provisionalOpen investigation →Can you balance a reaction without changing the substances?
Source context checked · detailed mapping provisionalOpen investigation →Does adding some base always make an acid neutral?
Source context checked · detailed mapping provisionalOpen investigation →Which metal can displace which other metal from a salt solution?
Source context checked · detailed mapping provisionalOpen investigation →What changes when two resistors share a current or share a voltage?
Source context checked · detailed mapping provisionalOpen investigation →Can a slower cart still conserve energy?
Source context checked · detailed mapping provisionalOpen investigation →How can a longer effort arm reduce the effort force?
Source context checked · detailed mapping provisionalOpen investigation →Why can the same force produce different pressures?
Source context checked · detailed mapping provisionalOpen investigation →Must two bodies settle at the simple average of their temperatures?
Mapping provisionalOpen investigation →How do two turns combine?
Source context checked · detailed mapping provisionalOpen investigation →What stays the same when a point is reflected?
Source context checked · detailed mapping provisionalOpen investigation →Can a long journey finish close to its start?
Source context checked · detailed mapping provisionalOpen investigation →What makes a quadratic meet, touch or miss the horizontal axis?
Source context checked · detailed mapping provisionalOpen investigation →How does a fixed difference shape both a term and a running total?
Source context checked · detailed mapping provisionalOpen investigation →Where is the point that divides a segment in a chosen ratio?
Source context checked · detailed mapping provisionalOpen investigation →Does doubling a shape double its area?
Source context checked · detailed mapping provisionalOpen investigation →How can an angle and a horizontal distance estimate a height?
Source context checked · detailed mapping provisionalOpen investigation →Do arc length and sector area respond to radius in the same way?
Source context checked · detailed mapping provisionalOpen investigation →What is shared by a cone and cylinder with the same base and height?
Source context checked · detailed mapping provisionalOpen investigation →Can one value change the mean while leaving the median unchanged?
Mapping provisionalOpen investigation →Must the observed fraction equal the theoretical probability?
Mapping provisionalOpen investigation →Can two communities have the same average income and different inequality?
Source context checked · detailed mapping provisionalOpen investigation →Can a smaller advertised interest rate still lead to a higher total cost?
Source context checked · detailed mapping provisionalOpen investigation →Can the shortest route be the more expensive route?
Source context checked · detailed mapping provisionalOpen investigation →How do competing land uses share a fixed area?
Source context checked · detailed mapping provisionalOpen investigation →Which words change when the speaker and reporting time change?
Source context checked · detailed mapping provisionalOpen investigation →How can one small word change what a speaker commits to?
Source context checked · detailed mapping provisionalOpen investigation →How do number and countability affect a noun phrase?
Source context checked · detailed mapping provisionalOpen investigation →How far can a survey support an analytical paragraph?
Source context checked · detailed mapping provisionalOpen investigation →Why can multiplying by a fraction make a number smaller?
Source context checked · detailed mapping provisionalOpen investigation →What changes when the value of every digit becomes ten times as large?
Mapping provisionalOpen investigation →When should a remainder stay over, and when does it require another container?
Source context checked · detailed mapping provisionalOpen investigation →Does splitting a rectangular array change its total?
Source context checked · detailed mapping provisionalOpen investigation →Why do exponent rules differ between a product and a power of a power?
Source context checked · detailed mapping provisionalOpen investigation →Why is (a + b)² larger than a² + b²?
Source context checked · detailed mapping provisionalOpen investigation →Which properties survive when a rectangle is sheared?
Source context checked · detailed mapping provisionalOpen investigation →Can a reflected triangle still be congruent to its original?
Mapping provisionalOpen investigation →Why is a mean from class midpoints an estimate?
Source context checked · detailed mapping provisionalOpen investigation →How do you add a duration when the clock passes midnight?
Source context checked · detailed mapping provisionalOpen investigation →How does the compass direction change around a magnet?
Mapping provisionalOpen investigation →Can energy be supplied while temperature stays unchanged?
Mapping provisionalOpen investigation →Does one observation determine every property of a material?
Source context checked · detailed mapping provisionalOpen investigation →Why does an extra carbon–carbon bond reduce the hydrogen count?
Source context checked · detailed mapping provisionalOpen investigation →Can a display show more decimal places and still be wrong?
Mapping provisionalOpen investigation →How can one place move from daylight into night while the Sun stays in the same direction?
Source context checked · detailed mapping provisionalOpen investigation →Do five copied reports count as five independent witnesses?
Mapping provisionalOpen investigation →Does a larger percentage discount always make the better-value pack?
Mapping provisionalOpen investigation →How does a verb form change the way an event is presented?
Source context checked · detailed mapping provisionalOpen investigation →What does a real future conditional commit the speaker to?
Source context checked · detailed mapping provisionalOpen investigation →Can different fractions describe the same amount?
Split, compare and discover why different fractions can name the same amount.
What must be connected for the bulb to light?
Connect the components, close the switch and investigate a continuous electrical path.
Which source best supports the order in which the school changed?
Reconstruct a fictional school’s past from dated records and a conflicting memory.
Where does rain go when the landscape changes?
Change rainfall and land cover, then follow the water through a small catchment model.
How would you use a limited budget when every need matters?
Fund competing needs with a fixed budget and make the trade-offs visible.
Which words make your interpretation convincing?
Read an original passage and choose the evidence that supports an interpretation.
How does air reach the living cells inside a leaf?
Turn a leaf, inspect its surface and open its layers to connect structure with gas exchange.
What do these plant and animal cells share, and what differs?
Compare enlarged plant and animal cutaways and test the function of a distinguishing structure.
How does a change in velocity change position over time?
Move between a position, a measurement and a graph while changing one parameter at a time.
What changes between the particle models of a solid, liquid and gas?
Compare solid, liquid and gas representations while keeping the same particle identities.
Does doubling the quantity always double the total?
Scale a quantity and its cost, then test a fixed-fee counterexample.
Why can more light stop increasing this model's photosynthesis rate?
Change relative light and carbon dioxide availability, then explain a plateau in a disclosed rate model.
What changes when a map represents more distance in each centimetre?
Measure a fictional route and use a stated scale to find its represented distance.
How can a community hear affected people before deciding?
Compare procedures for a fictional shared decision and identify an inclusive process.
At which price do wanted and offered quantities match in this model?
Compare wanted and offered quantities, then test how a shift changes a toy market intersection.
Which noun controls the verb in this sentence?
Construct original sentences and diagnose agreement when an intervening noun distracts you.
How does the sequence help explain the challenge to the salt law?
Order dated events and separate documented sequence from a claim needing more evidence.
How does changing only the load change acceleration at the same net force?
Run a rover cargo experiment, record fair comparisons and predict how net force moves a different load.
When a source changes frequency in the same medium, what must happen to wavelength?
Investigate a pressure signal, track material markers and compare frequency without confusing it with speed.
How can you change mass or charge without changing the element?
Build an isotope and an ion by changing the correct particles, with both dragging and keyboard controls.
Which sequence recovers all components, and why can another sequence leave a mixture?
Plan a multi-stage separation and account for sand, dissolved salt and water in every resulting container.
How can a selective membrane change water movement while solute stays on its own side?
Compare a selective membrane with a blocked control and track water separately from solute.
Which changes preserve an equation’s possible solutions?
Keep a signed algebraic equation equivalent through valid operations, then check a new solution in the original expressions.
Can you plan a route and explain it so another explorer can follow?
Navigate an original neighbourhood with cardinal directions, read its key and adapt a route around closed paths.
What can a pattern of monthly data establish that one rainy day cannot?
Compare two invented station records, calculate seasonal summaries and challenge a headline that confuses weather with climate.
Why can the party with more votes receive fewer constituency seats?
Edit fictional ballot counts, audit constituency winners, and compare aggregate votes with seats without inventing a winner in a tie.
Can a plan earn revenue yet lose money or exceed its resources?
Choose production, price and promotion under budget and time constraints, then stress-test the plan when demand falls.
How do you strengthen an argument when a document complicates it?
Evaluate competing original documents, calculate a sample proportion, calibrate a claim and test a survey headline on a new case.
Can changing the number of tokens leave the represented cargo unchanged?
Exchange ten-for-one tokens, conserve a visible cargo ledger and regroup through empty places before dispatching a shipment.
Does the same amount of fabric always need the same length of edging?
Design arbitrary connected patchwork, retain contrasting layouts and investigate how shared edges change a boundary.
When do two different jump patterns touch the same positive place?
Trace actual landing sets, compare two jump-size pairs and solve a route with required destinations and a forbidden stop.
How much evidence fixes the centre of a circle?
Construct independent chord bisectors, compare equal radii and test a report whose three rim marks become collinear.
When do two equations supply independent information?
Author two ticket constraints, build an elimination ledger, substitute a common solution and construct three kinds of line pairs.
How does changing diaphragm movement affect fresh-air entry, and when does chest motion fail to tell the full story?
Control a chest model, compare fair trials and trace two gases before explaining where energy is released.
What does pumping change, and why is blood not used up when it delivers oxygen?
Construct a loop, follow the same blood courier and compare pumping with no pumping while oxygen cargo is exchanged.
Explore a miniature habitat. Connect roots, leaves and animal features to water and shelter.
Investigate: Identify roots, stems and leaves and describe one job of each.
Build a model plate and discover how food sources contribute to variety.
Investigate: Distinguish three plant-food groups and name a food source.
Follow rain through a small landscape and compare covered and bare ground.
Investigate: Describe how seasonal rain changes water availability.
Test observable traits across plants, animals and a fungus. Build a better comparison key.
Investigate: Group familiar organisms using a stated shared characteristic.
Compare food-group proportions, variety and the limits of a simplified meal model.
Investigate: Calculate or compare represented food-group proportions.
Open a bean seed, adjust its surroundings and investigate what supports germination.
Investigate: Identify the seed coat, stored food, root and shoot.
Step through butterfly, frog and bean development and compare changing body forms.
Investigate: Sequence four stages of a chosen life cycle.
Move from leaf to internal tissues; test limiting resources and trace water transport.
Investigate: Connect stomata, leaf tissues and transport structures to their functions.
Connect digestion, breathing, circulation and excretion in a selectable organ model.
Investigate: Distinguish absorption, ventilation, transport and excretion.
Explore a respectful growth sequence, hormonal messages and individual variation.
Investigate: Describe growth and hormonal change without assigning a fixed personal schedule.
Explore enlarged plant, animal and root cells; connect structures to their roles.
Investigate: Identify the nucleus, membrane, cytoplasm and selected organelles.
Inspect different microbe forms and test a token model of growth and removal.
Investigate: Distinguish useful microbial roles from potential harm.
Change producer, herbivore and predator tokens and follow bounded feeding transfers.
Investigate: Trace a producer-to-consumer feeding relationship.
Connect soil, water, atmosphere and vegetation through a conserved water budget.
Investigate: Trace water among atmosphere, soil and surface water.
Inspect cell cutaways and test the initial direction of water movement across a membrane.
Investigate: Relate organelle structures to cellular functions.
Compare transport tubes, muscle fibres and signalling cells through structure and function.
Investigate: Match xylem, phloem, muscle and nervous tissue to their functions.
Challenge a simple trait key and explain why classification uses several characteristics.
Investigate: Evaluate a proposed grouping using recorded evidence.
Inspect a flower cutaway and distinguish pollen arrival, fertilisation and seed formation.
Investigate: Identify the stamen, stigma, ovary and ovule.
Test how exchange, absorption, transport and kidney water handling depend on one another.
Investigate: Use a counterfactual to explain linked nutrient and oxygen delivery.
Trace a reflex arc, interrupt the pathway and compare neural and chemical messages.
Investigate: Sequence receptor, sensory pathway, relay, motor pathway and effector.
Connect gametes to allele inheritance using a complete four-pairing model. Formative exploration.
Investigate: Enumerate possible allele combinations for a one-locus cross.
Investigate feeding transfers, interdependence and the limits of an environmental model.
Investigate: Explain transfer direction and why energy is not endlessly recycled through food chains.