"Bread is Moldy" Food PPT Courseware 3

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"Bread is Moldy" Food PPT Courseware 3

I will fill in the blanks

1. Eat ____ for breakfast, ____ for lunch, and ____ for dinner. After a meal, the doctor didn't come to see me.

2. In order to ensure the absorption of nutrients, some foods are suitable for ___, and some foods are suitable for ___.

3. The ____ and ____ in food will change after heating and become easily ____ and ____ by the human body.

4. Raw food will retain its own _____, especially ____ is not easily destroyed.

I will judge

1. Different ways of eating food will affect our absorption of nutrients. ( )

2. There are often many bacteria and parasite eggs on some foods. Therefore, all food should be cooked before eating, so that it is both delicious and hygienic. ( )

3. Raw food can reduce the loss of food nutrients, so we should mainly eat raw food. ( )

4. The nutrition of raw potatoes and cooked potatoes is the same. ( )

Observation experiment requirements:

Observe the appearance and color of the mold on the bread.

Be careful when observing!

Pay attention to hygiene during observation and use tweezers to pick up food.

After the observation, immediately return to the group to communicate. The recorder will take notes in time and send a representative to the stage to report.

He wants to study whether light affects the growth of mold, but he doesn’t know how to do this experiment. Could you please design an experiment?

Comparative experiment, only change one condition

Add 10 drops of water to each of two pieces of dried bread, put one piece into a transparent plastic bag and the other into a black plastic bag, wrap it tightly and put it on the balcony. Observe the changes.

Follow-up observations:

The experimental materials of each group will be taken home and recorded by the group leader. Other students will go home and prepare their own materials according to your group's design plan, observe the growth of mold on the bread every day, and make observation records.

I will choose

1. Of the following three, () molds and deteriorates quickly.

A. Dry biscuits on the table

B. Chao biscuits in the refrigerator

C. Moist biscuits placed at a suitable temperature

2. When exploring the growth conditions of mold, the first plan introduced in the textbook is: keep a piece of bread dry, put 10 drops of water on another piece of bread, and put them in two plastic bags respectively. This is to study the growth of mold and () how much. relation.

A. Air B. Temperature C. Sunshine D. Moisture

3. In life, we find that some food goes bad by the next day in summer, but not in winter. This shows that the growth of mold is closely related to ().

A. Air B. Temperature C. Sunshine D. Moisture

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For more information about the PPT courseware "Food Bread Moldy", please click the Food PPT Bread Moldy ppt tag.

"Bread is Moldy" food PPT download:

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"Bread is Moldy" Food PPT:

"Bread is Moldy" Food PPT Part One: Observing Moldy Bread Use a magnifying glass to observe moldy bread. Record the changes that occur to the bread. Bread becomes moldy because a biological mold grows on it. Mold is the common name for filamentous fungi. ...

"Bread is Moldy" Food PPT Courseware 4:

"Bread is Moldy" Food PPT Courseware 4 I will fill in the blanks 1. In order to ensure the absorption of nutrients, some foods are suitable for ___, and some foods are suitable for ___. 2. The ____ and ____ in food will change after heating and become easily ____ and ____ by the human body. 3. Raw..

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Update Time: 2024-09-28

This template belongs to science courseware Fourth Grade Science Volume 2, Textbook Edition industry PPT template

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