Be careful it might pop!

Technicraft: Experimenting with Acetic Acid and Bicarbonate of soda.

Materials - first test:

• Ziplock bag
• 20 mls of Acetic Acid (malt vinegar)
• 5 mls of Bicarbonate of Soda (baking soda)

Procedure:

1. Open the ziplock bag ready for testing.
2. Place your index and middle finger on the right side of the bag between the blue and yellow lines.
3. Put the Bicarbonate of Soda in one corner and twist above where it was poured.
4. Tilt it to the other side and pour the Acetic Acid on the other side.
5. Close the bag and release the Bicarbonate of Soda.
6. Shake the bag quickly.
7. Listen closely to the bag, what do you hear.
8. Place it on your cheek, what is the temperature.
9. Leave it for a few minutes and come back, what is the residue.
10. Observe and record what happened.

Results and Evaluation

The combination of the acetic acid and bicarbonate of soda caused a chemical reaction. The soda bubbled up and the bag filled up carbon dioxide, the test is a success!

DREAM BIG DREAMS - BECOME SCIENTISTS!!!

This is SCIENCE!!!

Investigating three types of matter, using shaving cream.

The first activity's materials is:

• Shaving cream
• 10 cents
• Magnifying glass
• Paper towel

Procedure:

1. Place the folded paper towel on the table.
2. Place a 10 cents coin on the middle of the paper towel just to ready it for later.
3. Spray shaving foam on each end of the paper towel.
4. Put the 10 cents coin on top of one end you sprayed shaving cream on.
5. Observe it, is it sinking or sliding.
6. Take a magnifying glass and look closely to the coin to see if it is actually sinking.
7. Put a bit of the one on the other end on your index finger and start rubbing it with your thumb, what do you notice?
8. Have a bit of fun with the other side and look at the coin, did it sink, if yes, you have found out it is a liquid.

Make a change EVERYBODY!

Learning Intention: We are learning how to persuade people to make a change! By using direct language to inform but also make readers make a change.
Success Criteria: I know I can do this when I use direct language to inform people to make a change.

Low tides can be very far sometimes!

Low tide

I walk beside you

across mudflats in

my blue gumboots,

over crackling oyster

shells, green-ribbed pipi,

the traces of wading birds.

When the tide is out, what lies exposed:

river threads of mud, old brown stones

tiny mussels yet to grow:

my sole prints left

on the ocean's

bones.

By: Sarah Penwarden