Separation Techniques and Mixture Characteristics

Separation Techniques and Mixture Characteristics

Assessment

Interactive Video

Chemistry

6th - 8th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers the topic of matter in chemistry, focusing on its characteristics and the law of conservation of matter. It explains the differences between mixtures and pure substances, detailing the types of mixtures: heterogeneous and homogeneous. The video also discusses separation techniques like decanting and filtration, and concludes with examples of mixtures and their properties.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the law of conservation of matter?

Matter can be converted into energy.

Matter changes its mass when it changes state.

The total amount of matter remains constant during a change.

Matter can be created or destroyed.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a physical characteristic of matter?

Mass

Flammability

Color

Volume

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a pure substance?

Gold

Air

Salt water

Brass

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is faster but requires solid particles to settle?

Evaporation

Distillation

Decantation

Filtration

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which separation technique involves pouring liquid away from settled solids?

Centrifugation

Chromatography

Filtration

Decantation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an example of a heterogeneous mixture?

Salt water

Salad

Clean air

Milk

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between heterogeneous and homogeneous mixtures?

Heterogeneous mixtures have a uniform composition.

Homogeneous mixtures have a non-uniform composition.

Homogeneous mixtures can be separated by chemical means.

Heterogeneous mixtures have components that are not chemically combined.

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