Primary Science Seed Dispersal Lab

Investigation Lab

Apply one test to one or two unknown plants and compare the scatter patterns directly.

Level

Wind direction

Choose a test. The same test will be applied to every unknown plant shown.

Random Map Practice

Generate a black-and-white map, identify each dispersal method, and export the diagram.

Question Creator

Place parent plants, generate seedlings, adjust the diagram, then lock it for a same-device peer challenge.

Set up the question, drag the parent plants, then generate the seedling patterns.

Creator Controls

Number of plants

Allow repeated dispersal methods

Water body

Direction of water flow

Wind direction

Assign each plant’s dispersal method

Choose the method represented by each plant. Switch on repeated methods when two or more plants should use the same method. With repeats off, choosing a method already assigned to another plant swaps the two assignments.

Student version: you choose each plant’s dispersal method. The map scale, labels, legend, plant symbols and water-body shape remain fixed. You may drag the parent plants and seedlings. A parent released in an unsuitable position moves to the nearest plausible location; validation also corrects invalid parent and seedling placements.

Number of plants

Map scale text

Show map scale Show water feature Show water pattern Show wind direction

Water feature

Water-feature orientation

Water-pattern line direction

Waterline shift 0

Curve amount 42

Direction of water flow

Coastline water side

Wind direction

Legend labels

Plant	Shape	Method	Seedlings

Drag parent plants and individual seedlings on the map. Parent markers are filled; seedlings are smaller outline shapes. Repeated dispersal methods are allowed. Each plant must use a different shape. A water-dispersed parent must sit beside the water boundary without overlapping it. River and coastline parents also need enough downstream space; lakes use a shoreline scatter with no flow direction. Use the standard waterline controls to adjust regular layouts. Generated questions use transparent white areas.

Advanced Water Layout

For teachers only. Design a custom river, coastline, inlet or lake using the 6 × 6 layout grid.

Advanced water-layout controls

For teachers only. These controls guide where the selected river, coastline, inlet or lake is generated.

Teacher passcode

Mark the actual route or area. Cells connect through shared sides. The layout engine reads the selected cells, identifies the water feature, asks for confirmation, then follows the selection: a river uses a narrow connected route between two map edges, a coastline uses a broad edge-connected water area, an inlet uses one edge-connected water area extending inland, and a lake uses an enclosed filled area that does not touch an edge.

How to mark each water feature

River

Mark a narrow continuous route. It may bend, and it must meet two map edges. The generated river follows this route.

Coastline

Shade the connected water area from a map edge inward. The boundary between selected and unselected cells becomes the coastline.

Inlet

Shade one connected water area that touches one map edge and reaches inland. It will be treated as an inlet and generated with coastline rules.

Lake

Shade one enclosed connected area away from all map edges. Its outer boundary becomes the lake shoreline.

Selected water-generation area

Use Analyse Selection first. The tool will identify the feature and ask for confirmation before generating it from this overlay.

Select the route or area shown in the examples. The generated water feature will follow the selected cells.

Primary Science Seed Dispersal Lab Student Edition v0.6.0

Investigation Lab

Random Map Practice

Question Creator

Teacher Question Creator

Advanced Water Layout

Advanced water-layout controls

How to mark each water feature