The Best Epistemology Books of 2023

Used Book in Good Condition

Trusted by Families Worldwide - With over 50 million sold, ThinkFun is the world's leading manufacturer of brain games and mind challenging puzzles

Develops critical skills – Playing your way through the challenges builds spatial reasoning and planning skills, and is partly an engineering and building toy that provides a great stealth learning experience for young players

What you get – Gravity Maze is a combination logic game, marble run, and STEM toy that's one of the best gifts you can buy for boys and girls age 8 and up It contains 60 challenges from beginner to expert, a game grid, 9 towers, 1 target piece, and 3 marbles

Clear instructions – Easy to learn with a clear, high quality instruction manual You can start playing and solving right away

Comes with multi-level challenges - Gravity Maze comes with 60 beginner to expert challenges that become increasingly difficult as you play through them

EXTENDED WIRELESS COVERAGE: Adds Wi-Fi range coverage up to 1000 sq ft, and connects up to 15 devices such as laptops, smartphones, speakers, IP cameras, tablets, IoT devices, and more.

AC750 WI-FI SPEED: Provides up to 750Mbps performance using dual-band and patented FastLane(TM) technology.

UNIVERSAL COMPATIBILITY: Works with any wireless router, gateway, or cable modem with Wi-Fi.

WIRED ETHERNET PORT: Simply plug in game consoles, streaming players, or other nearby wired devices using the one 10/100M port for maximum speed.

SAFE & SECURE: Supports WEP and WPA/WPA2 wireless security protocols.

SIMPLE TO SETUP: Press the WPS button to connect to your router. Use the NETGEAR WiFi Analyzer app for optimal location.

Finance Notebook: Manage and organize your personal finances, savings, debts, and bills with this simple money budget planner

Business Expense Tracker: Each sheet in our undated budget tracker notebook has a sizeable amount of space for you to track transaction type, date, description, tax, payment, and deposit

Reliable Quality: The small business bookkeeping record book has smooth, double-sided paper that allows you to easily write details from recent transactions

Dimensions: Each accounting notebook measures 8.5 x 6.25 inches; perfectly sized to fit into your purse, backpack, or laptop bag

What’s Included: This finance tracker notebook set comes in a pack of 2 expense ledger books for your personal or business finances

MASSIVE SCIENCE KIT FOR CURIOUS KIDS - More than 15 experiment activities including dueling water tornadoes, building an erupting volcano, growing a crystal, two geologic dig kits, and more

ENOUGH TO GO AROUND - This science lab allows kids to conduct multiple experiments and is great to share with family, friends, or classmates; you will enjoy the magic of discovery together

THE SECRET IS THE SCIENCE - A detailed learning guide teaches the science at work in the experiments, allowing your child to develop a deep, lasting appreciation for a variety of Earth sciences

HASSLE-FREE EXPERIMENTS - Clear, easy-to-follow instructions build young scientists' confidence as they experiment, allowing them to focus on the joy of exploration and discovery

SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.