Specification AgeRangeDescription : Baby Brand : Frey Scientific BulletPoint : Frey Scientific Choice Plain Preserved Earthworm measures 8 in and is useful for class dissection BulletPoint1 : Rhyolite sample approximately 1" (3cm) in size BulletPoint2 : Fantastic sample to be used as a density comparison - this volcanic rock is much lighter than most other igneous rocks BulletPoint3 : Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements BulletPoint4 : A high silica content makes it difficult for this rock to erupt, leading to explosive eruptions that emit ash and dust into the atmosphere BulletPoint5 : Specimen comes in clear labeled and barcoded bag for ideal storage Color : Battery EducationalObjective : Science ExternallyAssignedProductIdentifier : 7643000870278 ExternallyAssignedProductIdentifier1 : 885634203757 ExternallyAssignedProductIdentifier2 : 0885634203757 ExternallyAssignedProductIdentifier3 : 00885634203757 IncludedComponents : Plain Injected Preserved Earthworm ItemName : Frey Scientific Choice Plain Injected Preserved Earthworm, 8-10 in, Pack of 10 ItemPackageDimensions_Height : 10.16 centimeters ItemPackageDimensions_Length : 6.35 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-classroom-specimens Manufacturer : RANACO CORP ModelNumber : 120.1040.10 NumberOfBoxes : 1 NumberOfItems : 10 PackageLevel : unit PartNumber : 572501 Pattern : Standard ProductDescription : Rhyolite is an aphanitic felsic rock, formed during eruptions of thick, viscous magma. The evolved chemistry of the rock makes it lightweight relative to other igneous rocks, a good identifier during classification exercises in the classroom. Often contains phenocrysts of felsic minerals with only slightly higher crystallization temperatures than the feldspar and quartz that forms rhyolite. This sample is also available in packs of 12. ProductSiteLaunchDate : 2019-05-24T17:21:56.008Z Size : 8-10 inches Style : Standard SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable TargetGender : unisex UnitCount : 10