PS.3.2.1: Carry out investigations to infer changes in speed or direction…

Build It, Launch It Grades K–5 · partly supports this outcome

Egg drops, paper planes and balloon rockets, done properly at home. Three engineering challenges where kids build, test, fix and explain the pushes and pulls behind what happened.

• Can you drop an egg without breaking it? 60 min

  Kids design an egg protector on a materials budget, test it from a low height first and work up, and fix what fails. They finish able to explain why a soft, slow stop saves the egg.

• How does a rocket push itself into space? 45 min

  Kids build a balloon rocket that zooms along a string between two chairs, then run a fair test on how much air goes in the balloon. They finish able to explain action and reaction: the balloon pushes air back, and the air pushes the balloon forward.

Pushes, Pulls and Magnets Grade 3 · partly supports this outcome

Why a rolling ball always stops, whether a magnet can pull through a table, and how far a paper clip will jump. Three lessons on the pushes and pulls that start, stop and steer things.

• Why does a ball stop rolling? 45–60 min

  Teams roll the same ball down the same ramp onto a hard floor, a carpet and a towel, and measure how far it goes each time. They find out that a rolling ball doesn't just run out of go: something rubs against it and slows it down.

• How far will a paper clip jump? 45–60 min

  Teams slide a magnet slowly toward a paper clip along a ruler and measure the gap at the moment the clip jumps. They repeat it, use the pattern to predict what two and three magnets will do, and then design a magnet gadget that works without touching.

Printable practice for PS.3.2.1

These pages practise a closely related idea; the match to PS.3.2.1 is partial.

• Build It, Launch It workbook included with the unit

  3 practice pages, 3 readings, 1 word wall, 1 English-support page, 1 unit review, 1 unit test, with answer keys.

• Pushes, Pulls and Magnets workbook included with the unit

  1 word wall, 1 English-support page, 1 practice page, 1 reading, 1 unit review, 1 unit test, with answer keys.

• Forces at Work: Gravity, Resistance, Levers and Pulleys workbook included with the unit

  2 practice pages, 1 word wall, 1 English-support page, 1 reading, 1 unit review, 1 unit test, with answer keys.

Need just this outcome? Build a custom pack from these pages, with its answer key, in about a minute. Custom packs come with All-access and school licences.