Amplify Chemical Reactions 1.4

Poll

Do you think the chemical from the bell ringer will be effective in melting ice?

• Yes

• No

​Turn to page A1 in your workbook.

Turn to A1 in your workbook.

​Have your pencil and highlighter out. I will read the first column to you then you will highlight and underline text shown to you.

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Fill in the Blank

How would you describe the observations made in the following sentence: "The wooden table you’re sitting at is hard, your orange juice smells sweet, and the sugar in your sugar bowl is white."

Qualitative or quantitative

I will read the columns to you then you will highlight and underline text shown to you.

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Multiple Choice

Which of theses is a chemical formula?

• H₂O₂

• NaHCO₃

• C₈H₁₈

• All of the above

I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

​

I will read the columns to you then you will highlight and underline text shown to you.

​

I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

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Open Ended

Why do ethyl butyrate and isovaleric acid have different properties?

Multiple Choice

Why are oxygen molecules different than ozone molecules even though they are made up of the same atoms?

• They have different structures.

• They have different amounts of atoms.

• They have different bonds.

• All of the above answers are correct.

​In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.

Multiple Choice

Flammability is the ability of a substance to burn. What type of property is it?

• Chemical property

• Physical property

Multiple Choice

 Ice melting is an example of a______.

• Physical change

• Chemical change

Multiple Choice

Physical properties are

• properties that can be observed without changing the identity of the substance

• properties that describe how a substance changes into a completely different substance

• properties that we can only observe with our eyes

• properties that we need special tools to observe

Multiple Choice

 Which is an example of a chemical change?

• melting ice to make water

• baking cake batter to make a cake

• putting cheese on bread to make a cheese sandwich

• cutting an orange into slices for a snack

Multiple Choice

Hammering wood together to build a playhousev

• Chemical change

• Physical change

Multiple Choice

A copper penny turning greenish after a few years.

• Chemical change

• Physical change

Multiple Choice

Burning a marshmallow over a campfire

• Chemical change

• Physical change

Multiple Choice

 

Photosynthesis is the process in which plants make sugar(glucose) and oxygen. It is a ---- property.

• Chemical

• Physical chang

Multiple Choice

Solubility, the ability to dissolve, is a --- property.

• Chemical

• Physical

I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

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Open Ended

Can you think of two things that look exactly alike but are actually completely different?

I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

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I will read the columns to you then you will highlight and underline text shown to you.

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Open Ended

Why do you think different substances have different properties?

​Turn to page 16 in your workbook.

​What I learned from this lesson:

1. ​Substances are made entirely of atoms.

2. ​Atoms are extremely small; they are not visible to the eye.

3. ​Science theories are based on a body of evidence developed over time.

4. ​The term theory as used in science is very different from the common use outside of science.