KablamMy collection
Use simple test evidence to choose materials for particular jobs.
Compare test results against a stated design purpose.
Grade 2 · 7–8 years · 30 challenges
Compare test results against a stated design purpose.
Everyone predicts and compares the evidence before a rotating representative chooses. Read-aloud is optional. These are supplied sample records, not a live experiment. Allow 20–35 minutes for all 30 challenges, or play a short round.
Give everyone time to think and discuss before one pupil acts at the board. The class explains and confirms together; hints and explanations stay until you move on.
Use an up-to-date browser on a computer connected to a whiteboard or shared display. Touch, mouse and keyboard; optional audio and reduced motion. No pupil accounts or personal devices.
Choose from 5 challenges up to the full activity. Discussion determines the duration: you set the pace.
The cloth absorbed the drops, which fits wiping up a spill. The film and tile did not in these tests. This is evidence for these samples.
Would a rain cover need the same water result?
A stayed whole through the supplied carrying test. B and C both failed, even though C failed at its handle. A useful record reports the whole job.
Why does checking only the bottom of the bag miss a possible failure?
C bends and blocks drops. A fails the water need and B fails the flexibility need. The conclusion uses both records instead of the first attractive result.
Explain the choice without using the words best or nicest.
Sort by propertiesGrade 2 · FreeClassify materials using observable properties from a supplied test.
Heating and cooling changesGrade 2 · FreeDistinguish reversible examples from changes that cannot be reversed by cooling.
Parts can be rearrangedGrade 2 · FreeRecognize different objects made from the same set of pieces.