The Science Fair Logic Grid: Four Inventors, Four Projects, Four Prizes
Children match four inventors to four projects and four prize places using six clues, including negative clues, an either-or clue and an ordering clue. The stair-shaped grid links all three groups, and every clue is needed to reach the single answer.
Part of the pack
Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack
This is page 6 of the pack. Ages 9-10
About this worksheet
- Topic:
- Four-by-four logic grid
- Pack:
- Page 6 of 24 in Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack.
How to use this worksheet
Read all the clues first. Use ticks for yes and crosses for no, and cross out the rest of a row and column when you place a tick. Fill the podium results at the end.
Materials needed
- Pencil
- Eraser
Extension activities
- 1Write a 3x3 puzzle about your family for a friend.
- 2Time yourself and try to beat your time.

Written by
Hemsweta Jain · Teacher Cheena
MBA and Early Childhood Educator, teaching since 2014 · Founder of RaisoActive, Mumbai
Every RaisoActive worksheet is designed and checked by the founder before publishing.
Published · Last reviewed
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