Salt and water

AIM: DESIGN AN EXPERIMENT THAT TESTS THE AMOUNT OF SALT THAT MUST BE IN WATER BEFORE IT WILL NOT FREEZE WHEN LEFT OVERNIGHT IN THE FREEZER.

When we design an experiment there are some important questions that we must answer first. This is part of the planning stage and will help to give us some ideas.

Record these answers on your blog.

The Plan.

Task 1; Read the question carefully and write the answer to these questions.

1. What do we need to find out? I'm trying to see the amount of salt that must be in water before it will not freeze when left overnight in the freezer
2. How will we find it out? Research about the subject
3. How will we record what we find? Write or tell people in person about your experience
4. What equipment do we need for the experiment? Cups, salt, water
5. How long will it take? For the salt to freeze overnight

 

 

 

The Procedure

Task 2: What are the steps that you will take to make the experiment?

List them in 6 steps.

Step 1; see the amount of salt to put in the water for it to freeze

Step 2: when done mix the salt and water together to make the saltwater  

Step 3: check that there is 500ml in the cup for the experiment to work

Step 4: then freeze the saltwater but don’t leave it in overnight

The Process

Task 3: Draw on a piece of A4 paper the 6 steps that you will use to test the amount of

The Process

Task 3: Draw on a piece of A4 paper the 6 steps that you will use to test the amount of salt in water before freezing. When we are making drawings in science  it needs to be labelled clearly, kept tidy and named. Once you have completed the drawing it must be photographed and uploaded to your blog.

In your drawing you will use:

1. Beakers
2. Water
3. Measuring spoons or cups
4. Salt

in water before freezing. When we are making drawings in science  it needs to be labelled clearly, kept tidy and named. Once you have completed the drawing it must be photographed and uploaded to your blog.

In your drawing you will use:

1. Beakers
2. Water
3. Measuring spoons or cups
4. Salt