Science CBA Review

MIXTURES

100

What is a mixture? Give an example.

• A mixture is a combination of two or more substances that do not chemically combine.

200

What is the difference between a mixture and a solution?

Give an example of each:

A mixture is two substances that can be easily separated. A solution is a mixture that cannot be easily separated.

300

Oil and Water is a mixture or solution?

Mixture, they can be easily separated.

400

 List some solutions that are a liquid and a solid.

ex: Lemonade, Smoothie, 

500

Classify the following mixtures as a Liquid + Liquid Solution or Solid + Liquid solution:

^{1) Frosted Flakes and Milk}

^{2) Mud}

^{3) Sugar and Water}

^{4) Vinegar and Water}

^{5) Dish soap and Water}

1) L+S

2) S+L

3) S+L

4) L+L

5) L+L

FORCE & MOTION

100

What 2 forces are at play when a car rolls down a ramp?

Gravity & Friction

200

What tools would you need if you were testing the distance a ball rolls down a ramp?

Ruler, tape measurer, ball, and or timer

300

Explain how you would investigate how a magnet works at a distance using a ruler, paper clip, and magnet.

1) Put the paper clip at one end of the ruler and the magnet at the other end.

2) Slowly move the magnet closer to the paper clip

3) Stop when the paperclip begins to move

4) Record where the magnet begins to attract the paperclip

5) Test your experiment again and record the results

400

Tom is conducting an investigation. He rolls balls down 3 different types of ramps. Two of the balls roll about the same distance and the other one roll a shorter distance. What can you conclude about the ramps?

One of the ramps has more friction; or, one of the ramps is lower than the others.

500

If two teams are playing tug-a-war and the rope is not moving, what does this say about the forces.

The forces are balanced.

MAGNETISM

100

What 2 things does a magnet do?

Attracts and repeals materials

200

What does the S and N mean on a magnet?

North and South (or) Positive and negative

300

Which of the following will be attracted to a magnet?

1) Gold

2) Wood

3) Plastic

4) Brass

Gold and Brass

400

Identify if the magnets in the following positions would attract or repeal:

1) S to S

2) S to N

3) N to N

S to N

500

Which of the following is non magnet:

1) Glass

2) Dirt

3) Steel

4) Aluminum 

Glass, Dirt, Aluminum

PROPERTIES OF MATTER

100

If you were building a boat, what would the most important physical property to consider?

Density, ability to float

200

Two objects are dropped into a beaker of water, a rock and plastic straw. Which of the objects is less dense than water?

Plastic straw

300

Which of the following are insulators:

1) Wood

2) Plastic

3) Aluminum

4) Steel

Wood, Plastic, 

400

Classify the following as a conductor or insulator:

1) Plastic

2) Wood

3) Silver

4) Copper

5) Rubber

Conductors: Silver, Copper

Insulators: Plastic, Wood, Rubber

500

Three objects are placed inside a beaker. A rock the is 120 grams, 50 grams of dirt, and 62 grams of water. What is the mass of the beaker?

232 g

ENERGY

100

What does M.E.L.T.S. stand for

Mechanical, Electrical, Light, Thermal, and Sound energy

200

What happens when you push a marble into another?

They collide and transfer energy

300

Describe the transfer of energy when you use a microwave?

Electrical to thermal, light, mechanical, or sound

400

What type of energy transfer occurs with a wind turbine?

Mechanical to electrical

500

What transfer of energy occurs when you turn on a light?

Electrical to light/thermal energy