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Biblioteka

Unit 2 Summative Assessment (5th Grade)

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Napomena autora:

Chemical and Physical Change

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Pitanje 24
24.

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Pitanje 21
21.

Air is a mixture made up of

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Read the picture on the left.

Explain what happened in the experiment when we added all the materials. What is the result of the experiment? What causes the balloon to inflate?

To get full credit do the following:

1. Restate the question.

2. Narrate the process of the experiment.

3. State that a chemical reaction occurred to produce these new substances. What was the result of the experiment?

4. Be sure to state what gas caused the balloon to inflate.

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Pitanje 25
25.

Using the formulas above explain the experiment. What happened in the experiment? What new substances were formed? Where did the different atoms and molecules start out and where did they end up by the end of the experiment?

To get full credit do the following:

1. Restate the question.

2. List the substances the experiment started with and then list the new substances that were formed after the chemical reaction.

3. State that a chemical reaction occurred to produce these new substances by explaining where some of the atoms and molecules ended up after the chemical reaction.

4. Be sure to use the formulas to explain how matter is never destroyed, but can become something new.

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Pitanje 26
26.

Be sure to describe the atoms and molecules in how they move in each state of matter.

Pitanje 1
1.

The molecules that make up a solid

Pitanje 2
2.

The molecules that make up a liquid

Pitanje 3
3.

The molecules that make up a gas

Pitanje 4
4.

The molecules that make up plasma

Pitanje 5
5.

I have work to do and I sit on a chair in front of my desk. The chair and table are examples of which state of matter?

Pitanje 6
6.

I want to make tea, so I boil water.

The steam rising from the water is an example of which state of matter?

Pitanje 7
7.

I love to go swimming.

The water in the pool is an example of which state of matter?

Pitanje 8
8.

I need to grab an item from the kitchen. I turn on the fluorescent light. The fluorescent light is an example of which state of matter?

Pitanje 9
9.

The plasma state of matter occurs at ___________.

Pitanje 10
10.

The gas state of matter has ___________.

Pitanje 11
11.

Anything that has weight and takes up space is called __________.

Pitanje 12
12.

After a chemical reaction takes place, a new ________ is formed.

Pitanje 13
13.

A combination of starburst and skittles is an example of a _________.

Pitanje 14
14.

Combining Kool Aid and water is an example of a ____________.

Pitanje 15
15.

Scientists observe using their ______________.

Pitanje 16
16.

Carbon's weight is about the combined weight of its protons and neutrons?

Pitanje 17
17.

The atomic symbol for Carbon is D?

Pitanje 18
18.

Carbon has 6 Electrons?

Pitanje 19
19.

The following elements are

noble gases?

He (Helium)

Ne (Neon)

Ar (Argon)

Kr (Krypton)

Xe (Xenon)

Rn (Radon)

Pitanje 20
20.

The following elements are

reactive nonmetals?

H (Hydrogen)

C (Carbon)

N (Nitrogen)

O (Oxygen)

Cl (Chlorine)

B (Bromine)

Pitanje 22
22.

In order to create a solution my solute needs to _____________ in the solvent.

Pitanje 23
23.

After a few days of cooling a supersaturated solution will