Science Elective

Your Inquiry

Explore the Science Inquiry Process - In your Inquiry groups write up your questions and discuss your hypothesis. Record your thinking in your Science log book.

Science Inquiry Group Work - Researching

Before you can start your Science Inquiry you need to know more about your topic. In your Science book record key information from your research, remember to use Kiddle as your search engine.

In your groups Google Slide add a website page and a Bibliography page so you can keep track of where you have sourced the information and build a bank of videos to help support your inquiry.

Happy Researching!

Lesson 4: Science Observation - Sherbet

Chemical reactions in foods - lets explore some more Kitchen Science!

You will need:

• 6 teaspoons citric acid

• 3 teaspoons tartaric acid

• 3 tablespoons bicarbonate of soda

• 4 tablespoons icing sugar

• 1 packet of Jelly (any flavour)

• 1 packet of Raro (any flavour)

• 1 Lolly pop

• Bowl, measuring spoon & bag or container to store sherbet in.

Instructions:

Measure out all the ingredients into a bowl and mix together removing all the lumps, taste. Make up smaller bags and add a lolly pop. Enjoy!

How does it work?

The fizzing on your tongue is caused by a chemical reaction between the citric acid, tartaric acid and the sodium bicarbonate. When the citric acid, tartaric acid and sodium bicarbonate touch your saliva, they react together to make bubbles that fizz and pop in your mouth. The icing sugar, jelly, raro add sweetness.

This reaction is similar to the more common reaction between citrus and sodium bicarbonate. (Like the orange fizz Experiment) When an acid (like citric acid, tartaric acid) mix with a carbonate (like sodium bicarbonate), they react to form carbon dioxide gas, water and a salt. The carbon dioxide produced in this reaction is what makes the bubbles on your tongue.

Reactions between citric acid and sodium bicarbonate take a very, very long time if both chemicals are in the form of a solid powder. If they are dissolved in water however, the reaction will go significantly faster. That is why no bubbles of carbon dioxide are formed until you wet the chemicals with your saliva.

Science Inquiry Group Work - Researching

Continue your researching and record key information in your Science Log Book, remember to use Kiddle as your search engine and/or books from the Science book shelf.

In your groups Google Slide continue to add links to the website page, name of book and author in your Bibliography page so you can keep track of where you have sourced the information and build a bank of videos to help support your inquiry.

Lesson 5: Science Inquiry Group Work - Researching

Your research should be nearly complete. Use today to discuss and finalise what you need to know about your topic of Inquiry.

In your groups Google Slide continue to add links to the website page, name of book and author in your Bibliography page so you can keep track of where you have sourced the information and build a bank of videos to help support your inquiry.

Lesson 6: Science Observation - Hokey Pokey

Chemical reactions in foods - lets explore some more Kitchen Science!

What chemical reaction do you predict will happen when we mix Golden Syrup and Baking Soda?

You will need:

• Tablespoons Sugar

• Tablespoons Golden Syrup

• 1 Teaspoon Baking Soda

• Butter

• Small Pot/Saucepan

• Baking Paper

Instructions:

Add the Sugar and Golden Syrup into a small pot to melt over a slow heat, keep stirring until the sugar granules have dissolved. Once the sugar has dissolved turn up the heat slightly and allow it to boil for 2 minutes, try not to stir this mixture but instead gently swirl the pot, this helps stop the sugar reforming crystals and prevent your end hokey pokey from being grainy. Remove from heat. Immediately add 1 teaspoon of baking soda, stir this vigorously with a fork to make sure it is all mixed in. Pour out immediately onto a greased pan or greased baking paper using spatula. Leave this to cool and set for around a half an hour or more. Then break into bite size pieces.

How does it work?

When the bicarbonate of soda (baking soda) is added to the mixture it forms carbon dioxide bubbles and this causes the mixture to foam up. The sugary syrup then sets around the bubbles creating the foam like consistency of the Hokey Pokey. Bicarbonate of soda is alkaline and sugar is mildly acidic and when the two combine it causes this chemical reaction. This same bubbling reaction happens when you add baking soda to vinegar like in the baking soda bomb experiment. A chemical change is a chemical reaction that occurs in which a new substance is formed and it is not reversible, it cannot be changed back to its ingredients. It is when more than one thing mixes together and a reaction happens and sometimes something new is made. Making Hokey Pokey is an example of a chemical change.

Science Inquiry Group Work - Hypothesis

What is an Hypothesis?

Form your Hypothesis and add it to your group inquiry slide. How are you going to test your prediction?

Create a list of equipment you will need.

Lesson 7: Science Inquiry Group Work

Experiments... What do you need to set up your experiment?

Create a list of materials and ingredients.

Lesson 8: Science Inquiry Group Work

Experiments... Check in on your experiment. Record your findings.

Start to set up your Science Board/Update your Log Book (Google Slide)

Lesson 9: Science Inquiry Group Work

Experiments... Check in on your experiment. Record your findings.

Continue adding to your science board and update your Log Book (Google Slide).

Lesson 11: Recap

After such a big break lets recap on where your group inquiry is at. Many of you are nearly finished your experiments and are ready to record your method, results, conclusions and get them on your science board.

With only 4 weeks left to complete your inquiry lets add your groups name to the box below of what stage your inquiry is at.

Lesson 12: Recap

Time to get serious!!! Today is the last day for experiments. Working TOGETHER with your group to wrap up the experiments and record any findings.

Lesson 13: Finalising your Inquiries

Today with Mrs K you need to work on your Google slides to add your final thoughts and findings about your inquiry. Remember that it's ok if your experiments did not work, add your reflections into your results. Your log books need to be updated so Mrs Bava can start printing them ready to put on your science board next lesson.

Lesson 14: Putting your science board together.

Wrap up the last stages of your inquiry. Time to start putting your board together with your findings.