Question bank: Comparison of Measures: Capacity and Mass

Imagine you have a box with several oranges and a bottle of orange juice. The box weighs 2 kilograms and the bottle has 2 liters of juice. If you had to choose which one is heavier, the box of oranges or the bottle of juice, what would you say and why? Write your answer explaining how you compared the weight of the two objects using the information about kilograms and liters.

Ana and Pedro are helping to organize the school's June party. They need to fill a barrel with water for the fishing game and fill a box with popcorn for the snack stand. The barrel can hold up to 50 liters of water and the popcorn box needs to weigh 3 kilograms to be ready. Ana filled the barrel with 30 liters of water and Pedro put 2 kilograms of popcorn in the box. Who filled the container with more capacity, Ana or Pedro? And who put more weight in the box, Ana or Pedro? Explain how you compared the capacity and weight to reach your answer.

In a science activity, the 2nd-grade students want to investigate the amount of water and sand that different types of containers can hold. They have a cylindrical and a rectangular container, both empty, and need to decide which one to use to measure the amount of water that fits in a bucket and the amount of sand that fits in a box. The cylindrical container has a capacity of 3 liters and the rectangular one weighs 2 kilograms. Considering that the density of water is 1 kilogram per liter and that of sand is 1.5 kilograms per liter, which of the containers should the students use to accurately measure the capacity of the bucket and the box, knowing that the water and sand will not be compacted?

Imagine that you are a kitchen helper and need to know which vegetables weigh more and less, and also which one fills a water jug more or less. To find this out, you use a scale to see the weight of the vegetables in kilograms and a liter jug to measure the amount of water it holds. Describe how you would compare the weight of the vegetables, which are carrots and potatoes, and the filling capacity of the jug, using kilograms and liters. Remember to explain how you would use the scale and the jug to make these comparisons.

Maria has a bag with some toys and an empty gallon. She wants to know if the toys together weigh more than the empty gallon can hold water. The toys together weigh 2 kilograms and the empty gallon can hold 3 liters of water. Based on this, write down what is the result of the comparison Maria should make to find out if the toys weigh more than the gallon can store, explaining what she should consider regarding the weight measurement and the capacity measurement.