"Changes of Baking Soda and White Vinegar" PPT courseware on changes in substances

Description

"Changes of Baking Soda and White Vinegar" PPT courseware on changes in substances

In the last class, I learned:

1. Starch itself is a tasteless nutrient. Under the action of our saliva, it will turn into a ______ smelling nutrient.

2. Drop iodine on the starch and the starch will turn into color. Starch changes color when exposed to iodine, which is a ______ change.

3. Drop iodine on rice and steamed buns. The rice and steamed buns will turn ______ color because they contain ______.

Little knowledge about white vinegar

Used in cooking, especially in making pickles.

It can also be used as a household cleaner, for example to clean the inside of cups.

Changes after mixing baking soda and white vinegar

What happens if you mix baking soda and white vinegar in a glass?

Experimental steps:

1. Keep quiet and carefully pour the baking soda into the Erlenmeyer flask with vinegar and close the lid immediately.

2. Pay full attention to observe the changes. (Look, listen) and record the experimental phenomena.

3. Touch the outer wall of the Erlenmeyer flask with your hand, first touch the upper part, then the lower part.

4. Put the Erlenmeyer flask back to its original place and arrange it neatly. Prepare reports.

Hydrogen, oxygen, carbon dioxide

Hydrogen can burn.

Oxygen aids combustion.

Carbon dioxide does not support combustion.

Test: Put the burning wooden sticks into bottles respectively.

The gas that burns itself is hydrogen;

The gas that makes the flame burn more vigorously is oxygen;

The gas that extinguishes the flame is carbon dioxide.

What gas is produced when baking soda and white vinegar are mixed? Next we will do two experiments

1. Insert burning thin strips of wood into the bottle.

Is this the same as sticking a burning stick into an empty bottle?

Summarize

1 Baking soda and white vinegar will react chemically to produce a new substance - carbon dioxide.

2Carbon dioxide is a gas with special properties.

choose

1. The following options belong to the characteristics of baking soda ( ).

A. Large white particles B. All are cubic particles C. Powder-like particles

2. The following options belong to the characteristics of white vinegar ( ).

A. Sour smell B. White liquid C. Colorless liquid

3. The gas produced when baking soda and white vinegar are mixed is ( ).

A. Oxygen B. Carbon dioxide C. Hydrogen

4. The liquid left in the cup after mixing baking soda and white vinegar ( ).

A. It’s all white vinegar B. It’s all water

C. It is a liquid containing new substances

5. Put the lighted thin bamboo stick into the cup of mixed baking soda and white vinegar, the flame will ( ).

A. Continue to burn B. Extinguish immediately C. Extinguish after half a minute

6. Pour the gas generated after mixing baking soda and white vinegar toward the candle flame, the flame ( ).

A. Will go out immediately B. Will not go out C. Will go out after half a minute

Keywords: teaching courseware on changes in matter, teaching courseware on changes in baking soda and white vinegar, download science PPT courseware for sixth grade volume 2 of the Education Science Edition, download downloadable science slide courseware for sixth grade, download PPT courseware on changes in matter, changes on baking soda and white vinegar PPT courseware download, .PPT format;

For more information about the PPT courseware "Changes in Substances: Changes in Baking Soda and White Vinegar", please click on the Changes in Substances ppt: Changes in Baking Soda and White Vinegar ppt tag.

"Changes of Baking Soda and White Vinegar" PPT teaching courseware on changes in substances:

"Changes of Baking Soda and White Vinegar" PPT teaching courseware on changes in substances Part One: Observing Baking Soda and White Vinegar Have you ever observed white vinegar and baking soda? What are their characteristics? Observe the characteristics of baking soda and white vinegar and record them in the table below. Xiaosu...

"Changes of Baking Soda and White Vinegar" PPT download of changes in substances:

"Changes of Baking Soda and White Vinegar" Changes in Substances PPT Download Part One: New Lesson Learning Record Sheet of Characteristics of Baking Soda and White Vinegar Characteristics of Baking Soda Baking soda is a small white crystal, soluble in water. Characteristics of White Vinegar White vinegar is a colorless liquid made from...

"Changes in Baking Soda and White Vinegar" Changes in Substances PPT:

"Changes of Baking Soda and White Vinegar" Changes in Substances PPT Part One: Observing Baking Soda and White Vinegar Observe the characteristics of baking soda and white vinegar and record them in the table. Characteristics of baking soda: small white crystals soluble in water. Characteristics of white vinegar: colorless liquid with sour smell....

File Info

Update Time: 2024-10-20

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

Preview