Density experiments (5th Grade)

Hello, everyone!

In 5th Grade we learning about MATTER and its properties: mass, volume and density. 

After calculating the mass and the volume of some solids and liquids, we moved to density. 

"Density is the relationship between mass and volume".

Fist of all, we compared a rock and a piece of cork from similar sizes. We all agreed that they occupy the same space (they have the same volume) but the rock is heavier than the cork (it's got a bigger mass). So, we learnt that the rock was DENSER that the cork.

Then, we moved to liquids. 

1. First, we observed different liquids that have the same volume but weight different.

2. Then, we put the same quantity of water, honey and vegetable oil in 3 different beakers and we poured small objects inside, in order to observe if they floated or sank. Of course, we made predictions first!

"The denser a liquid is, the easier it is for an object to float on it". 

So, we could order the density of the liquids (from most to least):

1. Honey 

2. Water

3. Oil

3. We mixed them up and we saw that liquids with different densities don't mix.

4. Then, we tried to mix hot and cold water, to see if they have different densities (they do!):

5. And we did the same with salty or sweet water:

6. Finally, we poured all the liquids we saw at the beginning of the lesson into a container and we could check that...

"Liquids with different densities don't mix".

Now, it's your turn! Why don't you try it at home?

Thank you Maryam, Rihab, Andreea and Elena to share with us your experiment done at home!

Liquids and densities (5th B Grade)

Hello everyone!

How are you???

Today we have to congratulate five pupils from 5th B Grade, for having done an experiment at home and brought them in class in order to explain and show it to us.

They poured different liquids into a container and observed that they don't mix because they have different densities.

Our scientific students are: ARIADNA, NICU, ROBERT, ORIOL and MIREIA.

Great job children, thank you very much!!!

Liquids and densities (5th Grade)

Hello everyone!

In 5th grade we are studying MATTER and its properties (mass, volume and density).

Today, we have done one experiment to notice that:

• Different liquids have different densities.
• Liquids with different densities don't mix. So, you can pile them creating a beautiful effect.

We used:

HONEY, KETCHUP, LIQUID SOAP, WATER, OIL and ALCOHOL (5th B)

HONEY, LIQUID SOAP, MILK, DISH WASHER, WATER, OIL and ALCOHOL (5th A)

Liquids and densities II (5th A Grade)

Good afternoon boys and girls!

Today we have to congratule three students for having done an experiment at home and brought it in class. They are Saad, Roger and Judit, from 5th A grade. 

Yesterday, we had a great lesson on liquids and their densities. We did an easy experiment, which you can do in your houses. It consists on pouring different liquids into a glass and see what happens. You'll probably notice that they don't mix and that's because they've got different densities.

Come on, try it!

JUDIT: honey, milk, liquid soap and oil.

SAAD: honey, liquid soap, toilet cleaner, oil and alcohol.

ROGER: caramel syrup, honey, oil and alcohol.

Liquids and densities (5th Grade)

Hello everyone!

In 5th grade we are studing MATTER and its properties (mass, volume and density).

Today, we have done one experiment to notice that:

• Different liquids have different densities.
• Liquids with different densities don't mix. So, you can pile them creating a beautiful effect.

We used: 

HONEY - MILK - WATER - LIQUID SOAP - OIL