Monday, March 17, 2014

Answers in Genesis: The World of Animals Unit 5 Other Invertebrates Lessons 27-31

Lesson 27 Mollusks

For this lesson, we looked at some different shells.

We then did an experiment with dissolving one of the shells.

We covered the shell with vinegar and set it aside to watch!

10 hours later, you can see some of the shell coming apart.

We kept adding vinegar, up until about 4-5 days before this picture was taken.  Oops!  I forgot!  This is 21 days later and you can see how the vinegar has eaten away at the shell.

Lesson 28 Cnidarians

For this we made a jellyfish in a bottle.

You will need a water bottle, thread, and transparent plastic bag.

Tie thread around the head portion, then cut the bag into strips.

Fill the water bottle while putting the plastic bag into it..

Now you have a jellyfish!

Lesson 29 Echinoderms

Draw a starfish on a paperplate.

Cut it out.


Lesson 30 Sponges

For this lesson we checked out how much water a sponge would hold.

Lesson 31  Worms

For this lesson, I made a worm picture and let him color it and put some worms in the paths.  You can find this here.


You can find me linked here!


  1. Oh, I'd never thought about dissolving a shell in vinegar.

  2. WOW, that's a wonderful idea! I never knew you could do that.

    Thank you for sharing on the #homeschooollinkup!