Molecular Model Set – Organic Set – Student

Quick Answer: The Molecular Model Set – Organic Set – Student is a student-level organic molecular model set for building alkanes, alkenes and common functional groups by hand, so students connect structural formulae with real three-dimensional molecular geometry.

Learning Organic Chemistry by Building

Organic chemistry starts with carbon’s four bonds, and a model set shows straight away what a flat structural formula hides. When students join four atoms to a carbon centre, the result is a tetrahedron with bond angles of about 109.5°, which is why the carbon chain in propane or butane is zigzag rather than straight.

Building the alkane series, methane, ethane, propane and butane, teaches the idea of a homologous series, with each member one CH2 unit longer than the last. The same pieces then reveal structural isomers: butane can be built as a straight chain or a branched chain (methylpropane), and pentane in three different ways. Students who find isomers confusing on paper usually understand them after building them.

Alkenes introduce the double bond. A model of ethene is flat, with bond angles near 120°, and the two carbon atoms cannot twist relative to each other, unlike the freely rotating single bond in ethane. Functional groups such as the hydroxyl group of alcohols, the carbonyl group of aldehydes and ketones and the carboxyl group of acids can then be added to the chain, giving a hands-on route into naming compounds by IUPAC rules.

Applications

• Building the first members of the alkane and alkene series
• Finding all the structural isomers of a given molecular formula
• Practising IUPAC naming by building and swapping models with a partner
• Showing how functional groups change the structure of a carbon chain

Specifications

Care & Handling

• Give each pair of students one set and ask them to check its contents at the end of the period.
• Keep the small pieces away from young children.
• Clean pieces with mild soap and water if they become grubby, then dry them before packing.

Why Choose LabEquip

Chemistry teachers equipping a class for practical organic work usually buy student sets in multiples, and add the Organic Stereo Chemistry student set when the course reaches chirality and isomerism in space. Find both in Educational Science Models and send class sizes through the contact page so the right number of sets can be quoted.

Frequently Asked Questions

What can students build with an organic molecular model set?

Alkanes, alkenes and molecules carrying common functional groups, such as alcohols, aldehydes, ketones and carboxylic acids. Building them shows the real shape behind each structural formula.

Why does a model of methane form a tetrahedron?

Carbon’s four bonding pairs of electrons repel each other equally and spread as far apart as possible, which gives a tetrahedral shape with bond angles of about 109.5°.

How do models show the difference between single and double bonds?

Around a single bond, the two ends of the molecule can rotate freely. A double bond holds the atoms in a flat arrangement and prevents rotation, which is why alkenes can show cis and trans isomerism.

Can students use the set to find structural isomers?

Yes. Given the formula C4H10, students can build two isomers, and with C5H12 they can find three. It is one of the most effective uses of a student set.

How does this set differ from the Organic Stereo Chemistry student set?

This set covers core structures: chains, double bonds and functional groups. The stereochemistry set goes further into chiral centres, mirror-image isomers and the spatial arrangement of atoms.

How many students should share one set?

Pairs work well: one student builds while the other checks the structure against the formula, and the roles swap for the next molecule. For larger groups, buying more sets keeps everyone involved.

Last Updated: October 2026