Large Gro-Beast Alligator

(15 reviews)

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Gro-Beast Alligator 2 Pack
Item #: GB-202
$3.95

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Gro-Beast Alligator 20 Pack
Item #: GB-220
$23.85

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Gro-Beast Alligator 10 Pack
Item #: GB-210
$12.95

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These alligators grow more than 6" when placed in water!

Description

These growing alligators start at about 4 inches long (approx 10 cm) and grow to about 10 inches (approx. 25 cm) long when placed in water! These water absorbing polymers are great for a class measuring or graphing project or make a super demonstration. Growth is visible within 24 hours, full size in about a week! For an elementary literature connection, see Zack's Alligator, Item BK-200. Color and style may vary.

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Reviews

15 reviews

Watch 'em grow!

Jul 19, 2019

Our Vacation Bible School kids were amazed. They came in every day and rushed to see them. Then we measured them in centimeters and weighed them in grams. We had a wonderful educator that taught them so much with these items.

Gloria Schultz

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grow gators

Nov 1, 2015

I use these grow gators every year with pre-service elementary teachers. The excitement they generate as students design their own experiments is fun to watch. This helps future teachers see how easily experimentation can be added to elementary science curricula.

Jane

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maybe not

Jun 8, 2013

Well, they are all bending, curving up as they grow making them impossible to measure, we decided to let them grow and then we will take photo and be asking for a refund because we can not use them as we intended and they should be

Cheryl A Gustafson

Owner Response: Thank you for your feedback. I'm sorry the product did not meet your needs. Please contact our customer service department and we will provide a full refund.

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Retired teacher

May 23, 2013

So much fun!!!

Beverly Pape

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Love them!!

May 25, 2012

I love that these alligators are reusable! I use them with the book, "Zack's Alligator". We use graph paper to measure the alligators.

Starr Jordan

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Retired teacher

May 24, 2012

This alligator is a great addition to a primary classroom! I used it as a group activity for measurement and we discussed what made it grow. After the alligator had grown to it's full size we observed it decreasing in size and measured that too. Then it was put in the classroom science center for students to use in small groups or individually to explore further. The alligator can withstand a couple of years of this type of investigation before it has to be replaced. There are several literature connections that can be make with books such as Zack's Alligator and other books about reptiles.

Cheryl Cooper

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Very cool!

May 22, 2012

Used with my kids at home to make daily observations and measurements. Growth is very dramatic!

K. Evans

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Countless uses!

May 22, 2012

I use these alligators every year for different lessons. Lab techniques, metric measurement, density, graphing practice, polymers and hydrogen bonding, and just plain fun. I have used them in high school chemistry and middle school classes. All students love them!

Deb Costolnick

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create

May 18, 2012

Great for matter unit teaching properties and great to pair with math measurement standards.

pamela

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Chomp

May 17, 2012

Chomp joined our class and the kids loved him and his family. We grew a number of these multiple times. Watching them dry out and rehydrating over the weeks of school turning to a fun game beyond the planned class.

Chris Swafford

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Growing Alligator

May 16, 2012

My middle school students love these and they are reusable from year to year.I have them practice their measuring and weighing skills and then graph their results.

Prin Furst

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growing alligator

May 16, 2012

my middle school students love these and they are reusable from year to year.I have them practice their measuring and weighing skills and then graph thier results.

prin furst

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growing alligator

May 16, 2012

Great entertainment over and over

Robin Dahman

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Excellent for Demonstrating Osmosis

May 16, 2012

I bought these alligators about 4 years ago to use during my Cellular Transport unit. I teach high school biology and my students have a very difficult time understanding osmosis. I start by reading the book Zack's Alligator to my classes. We then weigh this little alligator and record data on a data chart. Each day a different student weighs their class's gator (teaches use of a balance for the first time). They record all data and at the end, they graph the percent change in mass. Excellent for showing hypotonicity. Then we let the gator evaporate and repeat the same process demonstrating hypertonicity. My students really get it after this activity. I've used the same gators for about 4 years and they still work great!!

Mary

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Great for the Science Lab

May 16, 2012

I use these to have my 3rd graders make predictions, fill out data tables and practice measurement skills.

Jody

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NGSS

This product will support your students' understanding of the Next Generation Science Standards (NGSS)*, as shown in the table below.

Elementary

Middle School

High School

2-PS1-2

Students analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.

MS-PS1-2

Students can analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

MS/ETS1.B

A solution needs to be tested, and then modified on the basis of the test results in order to improve it.

HS-PS2-6

Students will observe and communicate scientific information about why the molecular-level structure is important in the functioning of a material.

Suggested Science Idea(s)

2-PS1-2

Students can conduct simple tests using the Growing Alligators to better understand the rate at which the polymers absorb or evaporate water. Information gathered can be used as evidence to support or refute student ideas about hydrophilic (water-loving) materials.

MS-PS1-2

Students can analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

HS-PS2-6

Students will observe and communicate scientific information about why the substance is able to absorb so much water. Further study of the structure of the hydrophilic polymers will help students to understand that the molecular-level structure is important in the functioning of a material.

* NGSS is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of, and do not endorse, this product.

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