Science Unit 1 Review

A student says that they don’t need to learn about separating mixtures because only chemists and people who work in chemistry labs separate mixtures. How would you correct the student? GIVE TWO EXAMPLES OF WHEN YOU WILL USE THIS IRL

T/F All matter is either a pure substance or a solution.

define: heterogenous mixture and homogenous mixture

How would you separate clay and water

T/F Magnetism is a separation method often used to separate two solids

T/F Using evaporation, a solid portion of a mixture can be recovered from the liquid

a student poured salt into their glass of juice by accident. Can they remove all the salt by pouring the juice through a filter? Explain why or why not.

Which of the following separation methodswould be the bestway to separate a mixture of salt and water? (a) magnetism (b) distillation (c) filtration (d) evaporation

Ethanol boils at 79 °C. Water boils at 100 °C. Would distillation be an efficient way to separate the mixture?

Which of the following separation methods would be the best way to separate a mixture of raisins and peanuts? (a) sorting (b) distillation (c) filtration (d) evaporation

How would you separate leaves and sticks

How would you separate sand and gravel

T/F .Distillation is an efficient way to separate the components of a salt-and-water solution.

Which of the following separation methodswould be the bestway to separate a mixture of pasta and soup broth? (a) magnetism (b) distillation (c) filtration (d) evaporation

How would you separate sugar and water

Which of the following separation methodswould be the bestway to separate a mixture of oil and water? (a) magnetism (b) distillation (c) filtration (d) evaporation

Define: solution and pure substance

students mixed sand with water. Describe two ways to separate the mixture.

How would you separate pieces of iron and plastic

BONUS

Wheat grains might arrive at a flour mill mixed up with stones, sticks, and so on. What kind of mixture is this?

BONUS

T/F According to the particle theory, all matter is made up of tiny particles that do not move.

15. Which of the following substances is the solvent for almost all of the solutions in your body? (a) water (b) blood (c) saliva (d) salt

Define: solute and solvent