Building Blocks

Students explore how small pieces can be assembled to make larger objects with different properties, discovering how the structure of an object relates to its function and properties.

Children building with blocks
50 minutes
Pairs or small groups
Easy
Structure and Properties of Matter

Learning Objectives

  • Understand that small pieces can be assembled to make larger objects
  • Observe how the properties of a structure depend on the properties and arrangement of its parts
  • Explore how different arrangements of the same parts can create structures with different properties
  • Connect the structure of objects to their function and stability

Materials Needed

For Each Group

  • Building blocks (wooden, plastic, or interlocking blocks)
  • Small LEGO® or similar interlocking bricks
  • Craft sticks
  • Clay or playdough
  • Toothpicks
  • Small marshmallows or gumdrops
  • Paper and pencils for drawing designs
  • Rulers

For Teacher Use

  • Chart paper and markers
  • Examples of objects made from smaller parts (toys, furniture, etc.)
  • Pictures of structures (buildings, bridges, etc.)
  • Digital camera or tablet for documentation
  • Timer
  • Building challenge cards (optional)

Materials Note

If commercial building materials are limited, you can use recycled materials like cardboard pieces, paper tubes, bottle caps, or small boxes. Ensure all materials are clean and free of sharp edges.

Teacher Notes

This activity helps students understand that objects can be built from smaller parts, and that the properties of those objects depend on the properties and arrangement of their parts. This connects to the Grade 2 science standard related to the structure and properties of matter.

Key concepts to emphasize:

  • Different materials have different properties that make them suitable for different purposes
  • The way parts are put together affects the properties of the whole structure
  • Engineers design structures based on the function they need to serve
  • Testing and improving designs is an important part of building

Vocabulary to emphasize: structure, properties, parts, whole, stable, unstable, balance, support, design, engineer