Did you know that you can get EVERYTHING in Stage 1, Part A for $99? Go to STAGE BUNDLES - Stage 1 - Year 1 - Buy Now.

Investigate mass using an equal-arm balance

• Place objects on either side of an equal-arm balance to obtain a level balance

• Use an equal-arm balance to compare the masses of two objects and record, which is heavier or lighter

• Predict the action of an equal-arm balance before placing particular objects in each pan

• Use a balance to find two collections of objects that have the same mass

• Compare and order the masses of two or more objects by hefting, and check using an equal-arm balance