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Grade 7 Science Q1: Scientific Methods & Matter Practice Questions — Set 2

If you add more solute to an unsaturated solution, what will happen?

What is the concentration of a solution if 20g of salt is dissolved in 80g of water? (Percent by mass)

Which of the following is a physical change?

What is the primary indicator that a chemical change has occurred?

Which element is the most abundant in the Earth's crust?

What is the symbol for the element Gold?

Which of the following is a property of metals?

What refers to the ability of a material to be hammered into thin sheets?

Which of the following describes a substance with a pH less than 7?

When an acid and a base react, they produce water and a ______.