Week 1: April 6-10

Learning Goal:

I can describe the weathering and erosion process.

Estimated Time for The Week:

1 hour total

Type of Lesson:

Weathering and Erosion

Materials:

• Device with Internet access
• Dirt/soil (optional)
• Water (optional)
• Spray bottle/water bottle (optional)

Learn & Practice:

1. Click here for the Google Slides that give you the activities!
2. You will choose an image that you’d like to learn from on the Google Slides.
3. Once you’ve finished your choice, come back and try another!
4. On the Google Slides, several opportunities to extend your learning are given! Here are the summaries:
   • You can learn more via Nearpod by going there and entering the code WOLQZ
   • You can go on a virtual field trip with Nearpod by going there and entering code JOXGI
   • You can go outside with your family and find examples of weathering and erosion in your neighborhood.
   • You can build your own landform and observe.

Learning Goal:

I can understand that different materials have different effects on apples.

I can think like a food scientist and test which chemicals best preserve an apple.

Estimated Time for The Week:

3 hours (10-15 minute increments)

Type of Lesson:

Hands-on

Materials:

• 3 or more bowls
• 2 slices of apple per bowl
• Soda
• Lemon Juice
• Water

Learn & Practice: Procedures

***Parent/Student Note: This activity has a lag time of at least 3 hours. You will need a bowl labeled “regular water”, a bowl labeled “soda”, and a bowl labeled “lemon juice”. Write the names on the bowls before beginning the activity. You will also need 2-3 slices of apples for each bowl.***

Step 1: Background Information (5 Minutes)

Food scientists are scientists who learn about and create different types of food. Some food scientists are in charge of creating new ways to make apples last longer! Have you ever cut an apple to enjoy, but it turned brown before you had a chance to eat it all? This happens because the apples are “oxidizing” because they are exposed to the air. Food scientists experiment to learn more about different types of food. An experiment is a test used to learn more about something. You will think like food scientists and conduct an experiment on apples!

Step 2: Making a Prediction (5 Minutes)

You will first make predictions about what will happen when you put apples in different liquids for a few hours. A prediction is a guess about what will happen in future. You will be putting apples in regular water, soda, and lemon juice. Draw or write your prediction about what will happen when an apple sits in each liquid for a few hours.

• Do you think the apple will change size when it sits in the liquid?
• Do you think the apple will turn brown in the liquid?
• Which liquid do you think is best at keeping apples from turning brown?
• What other questions do you have?

Step 3: Putting Apples in Different Liquids (15 Minutes)

You will now set up your experiment to see what happens when you put apples in different liquids.

• First, put the apples in regular water. Use the following materials: ½ cup of regular water in a bowl labeled “regular water”, 2 pieces of sliced apple. Place your apples in the regular water.
• You will now put apples in soda. Use the following materials: ½ cup of soda in a bowl labeled “soda”, 2 pieces of sliced apple. Place your apples in the soda.
• You will now put apples in lemon juice. Use the following materials: ½ cup of lemon juice in a bowl labeled “lemon juice”, 2 pieces of sliced apple. Place your apples in the lemon juice.

***Parent/Student Note: Make sure that you save apples to place in a bowl with no liquid. This will provide you with something to compare your results to.***

Step 4: Making Observations (10 Minutes)

After 3 hours are up, you will look at your bowls and see what your apples look like! You will make observations of your apple. Refer to the handout “My Apple Observations” if needed. Write or draw your observations. Compare the apples that have been soaked to the apple slices that were not soaked. Do the apples that were soaked have fewer brown spots on them than the apples that weren’t soaked? Decide which liquid was best at preventing the apples from turning brown.

***Parent/Student Note: All of the apples that were soaked will have fewer brown spots than the apples that were not soaked. This is because they are submerged and there won’t be as much oxygen getting to the apples.***

Click the link below for printable instructions & handouts.

Apple Lesson

Document your experience as you go and upload your work to Class Dojo, Seesaw, Google Classroom, or whatever format you are using for your teachers to see! Most importantly, HAVE FUN!!!