The mass of a rock is measured with a balance. The rock is then broken into many smaller pieces and the total mass of all the pieces is measured again. Which of the following sentences about the mass is TRUE?

A glass marble and a piece of cork of the same shape and size are dropped in water. Which of the following explains correctly why the glass marble sinks while the cork piece floats on water?

All of the following objects are attracted to magnets EXCEPT _________.

The same quantity of sugar and sand are added to a glass of water and stirred. After some time the sugar particles cannot be seen while sand particles settle down. Based on the observations, which of the following statements is TRUE?

Which of these objects is an insulator?

Four spoons made of different materials are placed in a pot of hot soup for the same time. Which one could you safely use to stir the soup without burning your fingers?

A magnet would be attracted to which item?

A student completes an investigation, where sand and water are mixed together. The student needs to separate the sand from the water. Which of the following procedures should the student follow?

A student mixes together iron filings, sand, salt, gravel, and water. Which ingredients will keep all their physical properties after being mixed?

A student dropped a blue dye tablet in a glass of water. The tablet dissolved completely in the water to from a solution. Which physical property of the blue dye tablet did NOT change when mixed with water?

A teacher mixes 50 grams of sugar with 100 mL of water in a beaker until the sugar dissolves. The teacher then puts the beaker on a hotplate and evaporates the water. How much sugar will be left after all the water evaporates?

A class completes an experiment where they mix together salt, sand, and water. Which three tools will they need to separate the mixture?

Which of these is a solution?

What would be the best way to separate the trail mix?

All of the following are solutions except?

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