AC9S1U03: Describe pushes and pulls in terms of strength and direction and…

Build It, Launch It Grades K–5

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.

• What makes a paper plane fly farthest? 45 min

  Kids fold two different paper planes and run a fair test, changing one thing at a time: first the design, then the throw. They measure three throws each and explain the flight using lift, drag, thrust and gravity.

• 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.

Printable practice for AC9S1U03

• Build It, Launch It workbook included with the unit

  2 readings, 1 English-support page, 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.