Tuesday, February 23, 2016

Tuning Into Unit Fractions

 4HR is beginning to find out about unit fractions. We learned that there are many types of unit fractions, based on the denominators. Take a look through our presentation to see all the different types.

Monday, February 22, 2016

Consolidating Our Knowledge of the Rock Cycle

4HR got to experience the rock cycle last week in the Science Lab. This week we are going to review our learning and share it out! Use one (or more) of the resources below. Then pick one way to share your learning.

BrainPop Rock Cycle video


World Book

Options to show your learning

Share a rock cycle demonstration (ideas at PowerScienceKnowledge)

Take the BrainPop quiz (and email Ms. Heather your results)

Make a BrainPop idea map (and take a screenshot and add it your Google Drive)

Wednesday, February 17, 2016

Learning about Caves

4HR went on our field trip to the Batu Caves today. We investigated the following questions:

What changes have happened? And who/what caused those changes?

Here is what we found out.

Alicia - The farmers put dynamite in the cave and blew it up. So the floor was a lot deeper than it was naturally (before).

Jack - They did this to find limestone (or dinosaur fossils). The limestone was valuable for cement.

Julie - Humans carved their names into the walls.

Questions to be answered: Is limestone valuable because it is a sedimentary rock? Or it is shiny?

Omar - Water used to be in the cave by coming through holes.

Ranvir - Acid water causes a change in the cave by making holes.

Ashton - This is how stalactites and stalagmites are formed. Over a hundred million years, it will form a column.

Rea - Acid rain has a special kind of carbon dioxide that has calcium.

Kaelyn - Water drips from a stalactite to make a stalagmite.

Friday, February 5, 2016

Resources to Answer Our Questions

From learning about Earth layers, we have become curious about how the Earth began. We understand that scientists only have theories (no one was around when the Earth began).

Here is a resource about how plate tectonics began.

Thursday, February 4, 2016

Volcanoes in Snow?

Yesterday, scientists aboard a research ship witnessed Big Ben, a volcano in Antarctica, erupting. 4HR discussed the following:

-Are volcanoes linked to hot weather? How can there be a volcano in the snow?
-What comes out of the volcano? It looks like steam or ash.

Watch the video here to see and learn more.

Wednesday, February 3, 2016

Finding Equivalent Fractions

Today we are going to continue our investigation into equivalent fractions by using the program Illuminations. We can use lots of our strategies to find equivalent fractions.

-compare sizes of models
-represent on a number line
-find common factors and multiples

Which strategy was most effective and efficient for you?