Arctic Animals Science Kit — LEGO set 45203

Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗

Education · SET 45203

Arctic Animals Science Kit

Arctic animals, ice and small natural scenes accompany a science-themed building kit.

Pieces: 1,134
Release year: 2026
Theme: Education
Set number: 45203
LEGO recommended age: 9+
LEGO retail price · Italy: 99.99 €

View on LEGO Italy Official building instructions

Available at LEGO Italy when checked on 28 October 2026. Availability can change. Check the store for the latest information.

Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 28 October 2026

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Official English name verified at: LEGO English catalogue ↗ · Checked on 26 October 2026.

TIME TO BUILD

How long does it take to build Arctic Animals Science Kit?

Individual build

A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.

Editorial estimate · first build

Beginner

≈ 6 h 15 minSuggested range3 h 45 min – 10 h 15 min

Intermediate

≈ 4 h 15 minSuggested range2 h 30 min – 7 h

Experienced

≈ 3 hSuggested range1 h 45 min – 4 h 45 min

Based on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.

How we estimate times · sources and method

Editorial assessment of the first illustrated arrangement: Arctic animals, ice and small natural scenes accompany a science-themed building kit. The estimate covers the first illustrated arrangement, not every science activity or rebuild in the kit. A first build following the instructions, including normal piece finding; an adult may help when needed. Breaks and subsequent play are excluded. No verified timed build: indicative values with substantial variation.

Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.

LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.

Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.

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MAKE ROOM FOR YOUR NEXT BUILD

How much display space does it need?

Assembled-model dimensions are not yet documented for this set. Box dimensions cannot tell you how much display space it needs.

BEYOND THE BRICKS

Did you know?

The model, the history, the ideas

Inside the set

Several environments

Snowy and rocky areas separate different scenes rather than forming a single compact model.

LEGO source

Building and activities

The estimate covers the first illustrated arrangement, not every science activity or rebuild in the kit.

LEGO source

Beyond the set

The stories, places and inventions behind your build.

An ocean at the Arctic’s centre

The Arctic Ocean is Earth’s smallest ocean basin; the polar environment is not simply frozen land.

Read the full story

The Arctic is the smallest of five ocean basins, covering about 15.6 million square kilometres with an average depth near 1,205 metres. Its frozen surface overlies a deep marine environment, including water, seabed and communities hidden beneath the visible white covering.

NOAA

Life inside the ice

Salty channels in sea ice host bacteria and algae that support larger food webs.

Read the full story

Salty channels within sea ice harbour bacteria and algae. Melting releases organisms and nutrients, supporting algae and small animals feeding larger creatures. Ice therefore participates in the Arctic food web rather than acting only as an inert surface obstructing movement across the ocean.

NOAA

Expanded stories updated on 29 October 2026

Written by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.

THE COMMUNITY’S EXPERIENCE

What was it like to build?

Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.

No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.

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Building tips from the community

Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.

No approved tips yet.

SET THE MOOD

A soundtrack for your build

· Selected for the subject and atmosphere

Ponyo’s musical storytelling follows water and wonder. This suits marine atmosphere and playful subjects rather than serving as a generic choice for every animal.

OUR PICK

Ponyo on the Cliff by the Sea (Original Soundtrack)

Joe Hisaishi

Narrative and cinematic

Spotify ↗Apple Music ↗

Your listening moodChoose a different soundtrack

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