Curriculum › Grade 2 › Science

Take Apart, Build Again

  • Grade 2
  • Science
  • 2-PS1-3
  • Physical Science
  • Free lesson

Aligned to 2-PS1-3 — Next Generation Science Standards.

What this lesson teaches

A set of small pieces can be taken apart and put back together to make something brand new.

Worked examples

Example 1

You can pull apart a tower made of blocks and use the same blocks to build a bridge instead.

Example 2

Snap a set of building bricks apart and the same pieces become a rocket instead of a house.

Example 3

Cutting paper into pieces changes its shape but it is still paper. Rearranging is not the same as making something new.

Practice questions

  1. Build something with blocks, then take it apart and build a different thing.
  2. Draw two different objects you could make from the same set of pieces.
  3. Explain how a pile of Legos can become a car and then a house.

Watch the lesson

Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.

▶ Watch this lesson

En español

Desarmar y Volver a Armar

Un conjunto de piezas pequeñas se puede desarmar y volver a armar para hacer algo completamente nuevo.

Ejemplo 1: Puedes deshacer una torre de bloques y usar los mismos bloques para construir un puente.

Ejemplo 2: Separa unos bloques de construcción y las mismas piezas se vuelven un cohete en lugar de una casa.

Ejemplo 3: Cortar papel en pedazos cambia su forma pero sigue siendo papel. Reacomodar no es lo mismo que hacer algo nuevo.

More Physical Science lessons

Properties of Matter2-PS1Best Material for the Job2-PS1-2Can It Change Back?2-PS1-4

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