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.

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