STC-Middle School™, STC<sup>3</sup> Edition: Earth's Dynamic Systems Replacement Parts | Carolina.com

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STC-Middle School™, STC3 Edition: Earth's Dynamic Systems Replacement Parts

99 Items
STC-Middle School™, STC 3 Edition: Earth's Dynamic Systems Replacement Parts is rated 3.7 out of 5 by 10.
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$0.95 - $126.95Qty Discount Available View Details

This replacement parts list includes all or most of the unit's kit components. If you don't see the item you need, please contact Customer Service at 800.334.5551 (7am to 8pm ET, Mon-Fri) or email us at carolina@carolina.com.

 
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This replacement parts list includes all or most of the unit's kit components. If you don't see the item you need, please contact Customer Service at 800.334.5551 (7am to 8pm ET, Mon-Fri) or email us at carolina@carolina.com.

 
 
 
 
 
Rated 2 out of 5 by from A little misleading It was described as having a 3 inch diamater when in fact it was 3/16 less. For the project I hoping to use it for the size did matter and was unable to use it. Now I use it to prevent squirrals from getting to the food in a bird feeder.. Sorry
Date published: 2019-03-01
Rated 5 out of 5 by from Correct size for stair walking Don't bother with the cheap miniatures. This spring stair walks like the original I knmew as a child.
Date published: 2019-02-06
Rated 5 out of 5 by from Carolina Changed Suppliers If you have ordered this product prior to 2015, you were given a different brand of spring with different dimensions. When we ordered replacements for one of our class activities, they were of a different diameter, length, and turns per cm. The originals we ordered had a 7.5 cm diameter and were 10cm long (compressed). The new version Carolina sells have an 8.5 cm diameter are are 6cm long (compressed). Even with such a difference, Carolina kept the new model under the same item number. So, while the product is completely different, the item number is the same. At least the new description is accurate (but who would know when we simply call in the order using the item number we already have?) Carolina should list this under a different item number.
Date published: 2015-03-09
Rated 3 out of 5 by from Magnification is 3x I am adding this information for other customers as it is not listed in the description. The main lens magnifies 3x, and the smaller lens magnifies 6x. This would be great for younger students, but unfortunately is not high enough for my high school forensic science class.
Date published: 2015-01-30
Rated 1 out of 5 by from This product is not effective Testing this product out, it is inaccurate. When the class tested 0 of the long velcro strips to 1 velcro strips, 0 took more to pull apart than 1, when 1 should be harder. The fault is, the sides with velcro, have gaps in between the longer and more gripping strips. The area with 0 gripping velcro strips is covering the whole side, allowing for more grip than should be allowed for this test. 3 out of 4 sides on the one block have gaps, the last one does not. This does not allow for a fair test.
Date published: 2014-12-12
Rated 5 out of 5 by from Humus Soil This humus fit our needs in science perfectly. Students were able to observe it and test it for water retention, as well as plant seeds in it to observe how well the seeds would germinate compared to other soils. The best part was that Carolina Biological had the product. I could not find any humus in my community.
Date published: 2014-12-08
Rated 3 out of 5 by from Not Green I was confused at first because they are not green. They are the right thickness so I assume will be fine. Color coding would help distinguish the two different foam pads in this kit.
Date published: 2014-04-16
Rated 5 out of 5 by from red clay This is impossible to find in a store. Too make the lesson as planned you really need it. Great shipping!
Date published: 2013-10-20
  • y_2019, m_4, d_24, h_24
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_US, sid_FAM_513501C, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_carolina
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 4ms
  • REVIEWS, PRODUCT