Bell Work 10/17/14

1

Write the question, answer, and JUSTIFY!

Bell Work 10/17/14

2

Write the question, answer, and JUSTIFY!

Bell Work 10/17/14

1

Bell Work 10/17/14

2

Vocabulary Quiz1.___measure of the gravitational force exerted on an object

2.___anything that has mass and takes up space

3.___tendency of an object to

resist change

4.___the amount of matter in a given space or volume

5.___the type of matter that makes up the object and the way the matter is arranged

A – WeightB – InertiaC – DensityD – MatterE - Composition

Vocabulary Quiz Answers1.__A_measure of the gravitational force exerted on an object

2._D__anything that has mass and takes up space

3._B__tendency of an object to

resist change

4._C__the amount of matter in a given space or volume

5.__E_the type of matter that makes up the object and the way the matter is arranged

A – WeightB – InertiaC – DensityD – MatterE - Composition

Student Learning Objectives: SPI 0807.9.1 – Recognize that all matter consists of

atoms.

• What makes up all Matter?

SPI 0807.9.2 – Identify the common outcome of all chemical changes. • What is the common outcome of all chemical changes?

SPI 0807.9.6 – Compare the particle arrangement and type of particle motion associated with different states of matter.

• How do I compare the particles in a solid, liquid and gas?

SPI 0807.9.8 – Interpret the results of an investigation to determine whether a physical or chemical change has occurred.

• How can I discover if a physical or chemical change has occurred?

#TOC:

#42. Layering Liquids

# 43. White Before Your Eyes Lab

HAND OUT STUDY GUIDE!

#42. Layering Liquids

Demonstration

There are five liquids in the water bottles.

Each liquid has a different density.

The order of the layers shows the order of increasing densities.

Is the densest layer on bottom or on top?

Does it matter in which order the liquids are added?

Materials:

Beaker Shampoo

Water bottle Water

Maple syrup Corn oil

Dish detergent

Discuss with Your Elbow partner!

#43.White Before Your Eyes!Procedure:

1Copy table 1 and 2 onto your paper. Be sure to leave enough room in each box to write down your observations. Before you start the lab, put on your safety goggles.

2Look at the coffee filters holding the cornstarch. Record your observations about its appearance, such as color and texture, into the column titled “unmixed” on table 1. Repeat this step for the baking powder and the baking soda and record your observations on table 1 under the “unmixed” column.

3Use the spoon to put a small amount of cornstarch (about ¼ of the spoon) into the petri dishes. Use the eyedropper to add about 40-50 drops of water to the cornstarch in the first egg crate. Stir the mixture with the stirring rod. Record your observations on table 1 under “mixed with water.”

4Use a clean dropper to add 20 drops of vinegar to the cornstarch in the second egg crate Stir. Record your observations in table 1 under the “mixed with vinegar” column. Clean your stirring rod.

5Repeat steps 2 – 4 using the baking soda and the baking powder.

Table 2 Mixed with Water Mixed with Vinegar

Changes and Properties

Change Property Change Property

Cornstarch

Baking Soda

Baking Powder

Table 1 Observations

Substance Unmixed Mixed with Water

Mixed with Vinegar

Cornstarch

Baking Soda

Baking Powder

Analysis:

6 What physical properties do all three substances have in common?

7 In table 2, write what type of change you observed, and state the property that the change demonstrates.

8 predict what type of change you think would occur with the following:

a. sugar and vinegar

b. salt and water

c. Alka-Seltzer and vinegar

Exit Ticket