Just one more – Making ice cream in a box

61IEePofvoL._SX258_BO1,204,203,200_In this book, Ruby always wants “just one more.” Eventually she learns that you can have too much of a good thing.

The important feature in selecting this book, was not the life lesson, but the ice cream! If you can’t get hold of this book, any book featuring ice cream will do.

This is a great science activity for kids of any age, though the younger the children, the more of the shaking you’ll have to do for them (though, you might also get to eat more of the ice cream yourself).

You will need:

A large watertight lidded container (or you can use a large ziploc bag)
2 small, good quality freezer bags
8 tbs salt
Ice
Milk
Milkshake powder (or flavouring and sugar)

20170908_155058.jpg

Making ice cream:

Make up 1/2 cup (150ml) of flavoured milk. Or add sugar and flavouring to milk.

Pour mixture into a small freezer bag, seal well, removing air. Put it inside a second sealed bag, in case of leaks.

20170908_155719.jpg

Smash up your ice cubes! This step is not strictly necessary, the experiment works with large ice cubes, but smashing them creates more surface area for quicker salt action, and more importantly it’s fun. Jumbles had been completely disinterested in this project until that point, then suddenly he wanted to join in. Wrap the ice in a tea towel so that ice shards don’t go flying everywhere, then bash with a rolling pin.

Tip the ice into your large container or bag until it’s half full. It turns out I didn’t need anywhere near as much ice as I’ve been prepping over the last 2 weeks.

20170908_160140.jpg

Add a lot of salt to the ice (8tbs or more)
Place the bag inside the container of ice, close the lid.

20170908_160514-1.jpg

Wrap container in a teatowel (it’ll get very cold) and shake. It was a bit heavy for Bean, so I got her to roll it around on the floor. This step takes around 10 mins, Bean got bored after approximately 1 and Jumbles had left once the bashing ended, so this was left entirely to me.

20170908_161717.jpg
Remove the bag from the container, our outer bag had opened, so I was glad I double bagged. Rinse off the salt before opening.

20170908_162014.jpg
Open and dish up
Enjoy!

Depending on the age of your children you can decide how to explain the science.

For Jumbles (nearly 6) and Bean (4) I just said: “The ice helps to make the milk mixture really cold, the salt speeds it up a bit”
An explanation for adults/older children can be found here

Links:

Buy “Just one more” from Wordery (affiliate link)

“Just 1 more” read on Youtube (not a great reading unfortunately)

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s