Information for these foldables come from electronic on-line readers and Brainpop: Erosion. Week 19 CRM lessons. 
Here's another example of a built-in foldable. 
Under each flap, you can have students write the definition, or draw the phase change representations. Then, next to the word, on the next page, you can have them do something else. Below is an example of how students can then make more meaning by drawing or writing to describe an everyday example.
This is a great foldable to help organize thoughts on structure and function.
First you fold the top and bottom corners in to make a sideways house. Then, label the side of the page with the adaptation (leaves). You may want to flip the structure and function locations. 
Then, underneath you can either provide the structure, and the students have to come up with the function, or vice-a-verse. 
The beauty of these foldables is that there is no pasting or stapling of papers into the journals. You simply use the pages that are already in the journal. The following example really requires only 1 page from the notebook, but I used the page behind to pose a question "What happens in..."

The purple lines indicate a cut. The blue paper is inserted to help differentiate between different pages. 
When you flip each tab, there's a written explanation and a diagram. 
Here's a foldable for density that uses 2 consecutive pages. Density is written in graffiti style letters on the back page. The front page is folded over in half and there's a cut down the middle. You can easily have students write down examples of things that float or sink under the appropriate flaps. 
When you completely flip over the first page, under the graffiti letters is a definition of density and diagrams that represent different densities. Note that the least dense is still on the left and the most dense is on the right. 
Yes, something like this may take a long time, but your students will think it is awesome and most importantly, they will remember the concept. In this example, there are 3 tabs of different plate boundaries. Under each flap is specific information about each type of plate boundary (ex: landforms that result)
Open up the paper and cut 2 strips of paper (1/4 of a sheet width-wise). Weave into the slits as shown below.
This foldable is usefull for organizing concepts that have many parts. Ex: landforms, forms of energy, Sources of energy, Physical properties.

You could also use the contrasting colors to have students write/draw cause and effect situations. 
The above picture is obviously a spanish example, but think of the worksheet below as a grid filled with pictures of plant and animal structures. Students have to write the function of the structures in sticky notes and place them on top of the picture. 

This is similar to a 4 tab flip book, it may be more difficult to show a sequence of events, but it fits into a science journal nicer. If you are super creative, you can even make the front 4 panels one huge picture with each quadrant of the picture represent a vocab word. 
This book is good for organizing information occurring in 4. You can make the tabs all the same size, or you can customize the flaps to fit the information. Just simply fold the paper hot dog style and cut the top flap into as many tabs as you need. 

This book is also good for showing a short sequence. Ex: Life cycles. 

Students can also use this to collect data for an experiment that may last several days. One one flap they draw what they see, on the flap underneath, write their observations. 
This can easily be made into a 4 tab foldable. This is great for vocabulary. Students are able to represent the information in different ways. 

In one box, have the students write the vocab word.
The one box, have the students draw a representation of the word.
In one box, have the students write the "official definition"
In one box, have the students write the definition in their own words.

If you want, you can even have students write the definition in another language, or draw non-examples. 

You can teach the students to create this foldable, or just print out templates for them to cut out. You can download a template that I created below.
File Size: 10 kb
File Type: docx
Download File

Flip books are great for organizing groups of ideas that are related to each other. Students are able to see the big picture and have access to the details. 

To make this foldable, first decide how many tabs you will need. Round up to the nearest even number and divide by 2. That's how many pieces of paper you will need. Do not include the top or title flap in your tab count. Lay the papers on top of each other about a thumbs width higher for each page. Fold the stack in half and staple the top 3 times.