Density Experiment Kit for Kids
As an Amazon Associate we earn from qualifying purchases. We may earn a commission for purchases made through our links.
A fun science kit to learn about density with steel spheres.
Our Top 5 Picks
Exciting Science Experiments for Kids
Our Rank:
60+ Science Experiment Kit for Kids Ages 5-6-7-8 is the perfect springboard for sparking your child's curiosity in the world of science! As parents and educators, we know how vital it is to nurture that innate curiosity, and this kit makes it not only fun but incredibly engaging. With over 60 hands-on experiments—like creating your own lava lamp or digging for dinosaur eggs—children develop critical thinking, problem-solving skills, and an enthusiasm for exploration. 5-8 years
Develops skills:
Why we love it:
Exciting Science Experiments for Kids includes over 60 hands-on experiments that turn parents and children into co-explorers, igniting curiosity while making lasting memories together.
Exciting Hands-On Science for Kids
Our Rank:
Hand2Mind Starter Science Measuring Flask Set invites our little explorers to dive into the world of science with enthusiasm! This set is perfect for sparking curiosity and nurturing essential skills like measurement, mixing, and observation. As your kids experiment with colorful, easy-to-grip flasks, they'll develop fine motor skills and a foundational understanding of scientific principles—making it a fun and educational experience. 3+ years
Develops skills:
Why we love it:
Exciting Hands-On Science for Kids includes colorful, easy-to-grip flasks that turn any tabletop into a budding scientist’s laboratory, making learning feel like a fun experiment.
Galt Science Lab for Young Explorers
Our Rank:
The Galt Science Lab invites children aged 6 and up to embark on a thrilling journey of scientific discovery with 20 captivating experiments. From making a floaty ghost to creating a vibrant kaleidoscope, this kit not only ignites curiosity but also fosters critical thinking and problem-solving skills through hands-on learning. With a full-color lab book and all the materials included, it's a fantastic opportunity for parents and educators to introduce early STEM concepts in a fun and engaging way. 6+ years
Develops skills:
Why we love it:
Galt Science Lab for Young Explorers includes 20 captivating experiments that spark curiosity and develop essential STEM skills while transforming your kitchen into a mini laboratory!
Discover Science with Hands-On Play
Our Rank:
The Thames & Kosmos Kids First Science Laboratory STEM Experiment Kit is an engaging gateway to the world of science for young learners ages 3 and up. This colorful set encourages curiosity and hands-on exploration while developing crucial STEM skills, including problem-solving and critical thinking. With durable tools and exciting experiments, it's a fantastic way for parents and educators to inspire a lifelong love of learning in their children. 3+ years
Develops skills:
Why we love it:
Discover Science with Hands-On Play features durable tools and exciting experiments, making science feel like an adventure and sparking your child's curiosity in the most delightful way.
Mega Science Adventure for Kids
Our Rank:
The National Geographic Mega Science Lab is an incredible science kit for kids packed with over 130 exciting experiments! From building erupting volcanoes to growing glow-in-the-dark crystals, this kit fosters a love for Earth sciences and chemistry while developing critical thinking and problem-solving skills. Parents and educators will appreciate the bonus guide filled with household activities, making it easy to explore fascinating science concepts at home or in the classroom. 8+ years
Develops skills:
Why we love it:
Mega Science Adventure for Kids includes over 130 exciting experiments that transform kitchen tables into mini laboratories, making science irresistibly fun and brilliantly engaging for young minds.
Bubble Science Adventure Kit
Our Rank:
The 4M Bubble Science, Bubble Making Science Kit opens up a world of imaginative exploration for kids aged 5 and up. This fun-filled kit not only allows children to create unbreakable and giant bubbles but also helps develop critical thinking and problem-solving skills as they experiment with different bubble shapes and sizes. Perfect for parents and educators looking to engage children in hands-on science activities, it encourages curiosity while blending play with learning in a delightful way. 5+ years
Develops skills:
Why we love it:
Bubble Science Adventure Kit lets kids create unbreakable and giant bubbles, making science feel like a magical outdoor party where learning and laughter go hand in hand.
Glow Lab: Spark Your Child's Curiosity
Our Rank:
Glow Lab is an exciting science kit that invites children to explore, experiment, and ignite their enthusiasm for STEM learning! With engaging activities such as creating their own glowing bouncy ball and molding slimy glow bugs, kids can develop important skills like critical thinking and creativity. The included 24-page lab book guides them through 11 captivating experiments while encouraging scientific inquiry. 6+ years
Develops skills:
Why we love it:
Glow Lab includes a 24-page lab book that leads kids through 11 captivating experiments while sparking enthusiasm for STEM learning—and who doesn’t love glowing bouncy balls?
National Geographic Science Magic Kit
Our Rank:
The NATIONAL GEOGRAPHIC Science Magic Kit transforms the learning experience into an exhilarating adventure that combines magic and science! With over 100 captivating experiments, kids will not only dazzle their friends and family but also engage in hands-on learning that builds critical thinking and problem-solving skills. From bending metal with water to making snow appear in their hands, this kit fosters curiosity and nurtures a love for STEM fields in an incredibly fun way. 8+ years
Develops skills:
Why we love it:
National Geographic Science Magic Kit includes over 100 captivating experiments that blend learning and fun, making science feel like pure magic in their hands!
Food Science Fun and Discovery Kit
Our Rank:
Carson Dellosa 29pc Mini Maker Food Science Kit is a delightful blend of fun and learning that will keep our kids engaged for hours! Designed for curious minds in grade 2 and up, this kit empowers them to explore STEM concepts through hands-on experiments like creating super goo and bubbly lemonade. With essential supplies like experiment cards, a mini journal, and stickers, our young scientists can develop critical thinking skills and creativity while having a blast. 2-5 years
Develops skills:
Why we love it:
Food Science Fun and Discovery Kit comes with 29 pieces that make science deliciously engaging, sparking curiosity and creativity while turning our kitchens into playful labs.
Mix And Measure Fun: Science Adventures!
Our Rank:
Learning Resources Mix And Measure Activity Set makes science come alive for our little ones! This colorful collection not only sparks curiosity but also introduces essential measurement concepts through hands-on play. As kids mix and create goo, slime, and puffy paint, they're developing vital sensory skills and math abilities—all while having a blast! 3+ years
Develops skills:
Why we love it:
Mix And Measure Fun: Science Adventures! is a colorful set that transforms learning through hands-on mixing and creating goo, making math and science a delightful mess.
Exciting Chemistry Experiments for Young Scientists
Our Rank:
The Thames & Kosmos Ooze Labs Chemistry Station Science Experiment Kit invites kids to transform into young chemists through 20 non-hazardous experiments. With vibrant colors and exciting activities like creating glowing slime and colorful chromatography, children can safely explore essential scientific concepts while developing critical thinking and problem-solving skills. This kit not only includes all the necessary tools, such as beakers and test tubes, but also features an engaging 16-page manual filled with explanations that spark curiosity—making it a fantastic choice for parents and educators looking to inspire STEM learning. 8-14 years
Develops skills:
Why we love it:
Exciting Chemistry Experiments for Young Scientists includes 20 non-hazardous experiments that let kids safely explore science, making every kitchen table a bubbling lab of curiosity and fun.
Ooze Labs Science: Fun Experiments for Kids
Our Rank:
Thames & Kosmos Ooze Labs: Big Box of Science is the perfect way to spark your child's curiosity and creativity! With five engaging experiments, kids can dive into the wonders of chemistry as they create everything from glow-in-the-dark slime to instant snow. Not only do these activities promote critical thinking and problem-solving skills, but they also provide hands-on learning experiences that are both fun and safe. 8+ years
Develops skills:
Why we love it:
Ooze Labs Science: Fun Experiments for Kids includes five engaging experiments that transform kitchen chaos into a fun chemistry lab, making learning a colorful adventure for budding scientists.
Backyard Science Exploration Kit
Our Rank:
Be Amazing! Toys Big Bag of Backyard Science is the ultimate science kit designed for curious minds aged 8 and up. Bursting with 50+ engaging projects, this kit invites kids to explore the wonders of physics, biology, and more right in their own backyard. 8-12 years
Develops skills:
Why we love it:
Backyard Science Exploration Kit includes over 50 engaging projects that turn our outdoor spaces into mini laboratories, igniting curiosity and making learning an adventure right at home.
Glow in the Dark Science Adventure
Our Rank:
The NATIONAL GEOGRAPHIC Mega Science Kit - Glow in The Dark Lab invites kids into a fascinating world of discovery. Through hands-on activities like crystal growing and slime making, children enhance their problem-solving skills, ignite their curiosity, and engage in teamwork while exploring the wonders of science. This kit not only provides endless fun but also encourages quality family time and educational exploration, making it an ideal choice for parents and educators alike. 8+ years
Develops skills:
Why we love it:
Glow in the Dark Science Adventure features hands-on activities like crystal growing and slime making, making science a captivating family bonding experience that glows long after the lights go out.
Exciting Science Fun with Jumbo Test Tubes
Our Rank:
Learning Resources Primary Science Jumbo Test Tubes with Stand unlock a world of scientific exploration for our little ones! This vibrant set includes six chunky, colorful test tubes that are perfectly sized for tiny hands, inspiring creativity and curiosity in young scientists aged 3 and up. As educators and parents, we appreciate how these test tubes come equipped with calibration marks, allowing kids to learn valuable measuring skills while conducting their own experiments. 3+ years
Develops skills:
Why we love it:
Exciting Science Fun with Jumbo Test Tubes includes six chunky, colorful test tubes that let young scientists conduct their own experiments while dexterously practicing measuring skills and creativity.
Rocket Kids Science Kits Launch Excitement
Our Rank:
Rocket Kids Science Kits take your little ones on an exhilarating journey through the cosmos! With 18 engaging STEM experiments, this kit fosters curiosity and inspires budding scientists to explore the wonders of rocketry and the solar system. As educators and parents, we appreciate how interactive activities like building an anemometer or making a homemade barometer teach essential scientific concepts while developing critical thinking and problem-solving skills. 8-12 years
Develops skills:
Why we love it:
Rocket Kids Science Kits with 18 engaging STEM experiments make exploring rocketry a thrilling adventure that nurtures a lifelong love for science in young learners.
Rainbow Lab: Fun Science Experiments Await!
Our Rank:
Rainbow Lab by Galt Toys sparks curiosity and cultivates scientific thinking in our little ones! This engaging kit invites kids aged 5 and up to explore color mixing, grow jiggly crystals, and even create their own rainbow. With 12 exciting experiments and a vibrant lab book, children will develop essential STEM skills while having a blast. 5+ years
Develops skills:
Why we love it:
Rainbow Lab includes 12 exciting experiments, allowing kids to mix colors and grow crystals while discovering the magic of science in a colorful way.
Hape Science Experiment Toolbox Fun
Our Rank:
Hape Science Experiment Toolbox is an exciting, hands-on adventure that opens the door to the world of science for our little ones! With 32 vibrant wooden pieces, kids aged four and up can explore over 6 fascinating experiments while mastering essential concepts like persistence of vision and the lever principle. Designed specifically for tiny hands, this kit not only nurtures curiosity and creativity but also supports key developmental skills like problem-solving and critical thinking. 4+ years
Develops skills:
Why we love it:
Hape Science Experiment Toolbox Fun includes 32 vibrant wooden pieces that make exploring science a hands-on adventure, turning young minds into budding scientists while they learn through play!
Explore Nature with STEM Challenge Kits
Our Rank:
Carson Dellosa Stem Challenge Science Kits for Kids Age 5-7 are a wonderful gateway into the fascinating world of science! As parents and educators, we know the importance of cultivating curiosity in our little ones. These engaging learning cards spark imagination and discovery as kids dive into interactive projects about plants, animals, insects, and weather. 5-7 years
Develops skills:
Why we love it:
Explore Nature with STEM Challenge Kits offers engaging learning cards that spark imagination while diving into interactive science projects, making discovery both fun and educational.
Newton's Antics Science Kit
Our Rank:
The Steve Spangler Science STEM Kit: Newton's Antics Science Kit invites children aged 8 and up to explore the wonders of physics through hands-on experiments. By engaging with gravity, friction, and inertia, kids not only grasp fundamental scientific concepts but also develop critical thinking and problem-solving skills. This fun and educational kit empowers parents and educators alike to inspire a passion for science in a playful and interactive way. 8+ years
Develops skills:
Why we love it:
Newton's Antics Science Kit features hands-on experiments that make physics come alive, turning every discovery into an exciting adventure in learning right from the living room.
Exciting Chemistry Kit for Young Scientists
Our Rank:
Dr. STEM Toys - Kids First Chemistry Set Science Kit is the ultimate way to spark a love for science in our little ones! With 29 diverse lab elements and 10 thrilling experiments, our kids can dive into the fascinating world of chemical reactions and molecular structures right from home. 5-12 years
Develops skills:
Why we love it:
Exciting Chemistry Kit for Young Scientists includes 29 diverse lab elements that turn our little ones into mini chemists while making learning a thrilling hands-on adventure.
Primary Science Lab Activity Set
Our Rank:
The Learning Resources Primary Science Lab Activity Set is an exciting gateway for kids to dive into the colorful world of science! Designed for budding young scientists, this hands-on experiment kit invites preschoolers to explore basic chemistry concepts through engaging activities and real-life tools, including beakers, goggles, and test tubes. By fostering curiosity and encouraging observation, this set helps kids develop critical thinking skills, while igniting their love for discovery. Preschool
Develops skills:
Why we love it:
Primary Science Lab Activity Set includes real-life tools like beakers and test tubes, making science experiments feel like a thrilling adventure for little explorers.
Shape Gel Science Fun for Kids
Our Rank:
Steve Spangler Science Shape Gel Starter Kit is an exciting hands-on adventure into the world of polymers! As educators and parents, we know how vital it is to engage our kids in STEM activities that inspire curiosity and creativity. This kit not only teaches kids about chemical reactions but also allows them to express themselves through colorful art while developing critical thinking skills. 6+ years
Develops skills:
Why we love it:
Shape Gel Science Fun for Kids comes with a safe, non-toxic formula that transforms science into colorful art, making learning both fun and worry-free for caregivers.
Gross Science Fun Kit for Kids
Our Rank:
The NATIONAL GEOGRAPHIC Gross Science Kit is an unforgettable adventure into the world of science, designed for kids aged 8 to 12! With 45 gross experiments like boiling boogers and creating glowing worms, this kit not only excites curiosity but also teaches valuable scientific concepts. As parents and educators, we've seen how hands-on activities ignite a passion for learning, develop critical thinking skills, and promote teamwork in young scientists. 8-12 years
Develops skills:
Why we love it:
Gross Science Fun Kit for Kids includes 45 experiments that boldly blend laughter with learning, making science an unforgettable and messy adventure for all young explorers.
Glow in The Dark Science Adventure
Our Rank:
Big Bag of Glow in The Dark Science invites kids aged 8-12 to embark on an illuminating journey through the fascinating world of science! With over 50 exciting experiments, this kit not only captures their imaginations but also reinforces crucial STEM principles, fostering skills in inquiry and problem-solving. Our detailed step-by-step instruction book guides families through each experiment, making it perfect for bonding during family nights, sleepovers, or playdates. 8-12 years
Develops skills:
Why we love it:
Glow in The Dark Science Adventure includes over 50 exciting experiments, turning an ordinary night into a glowing opportunity for families to bond while exploring the wonders of STEM.
National Geographic Magic Chemistry Set
Our Rank:
The National Geographic Magic Chemistry Set is an exciting way for kids aged 8-12 to dive into the wonder of science! Packed with 10 mind-blowing experiments, this kit not only teaches valuable STEM concepts but also encourages creativity and critical thinking as children perform their tricks like seasoned magicians. Complete with a magic wand and gloves, kids will amaze their friends and family while cultivating a love for learning and exploration. 8-12 years
Develops skills:
Why we love it:
National Geographic Magic Chemistry Set includes 10 mind-blowing experiments, making science feel like magic and sparking curiosity in kids while they wow their friends and family.
Erupting Science Fun: Volcano Experiment Kit
Our Rank:
Dr. STEM Toys Volcano Making Experiment Science Lab Kit is the ultimate adventure for young scientists eager to explore and understand the fascinating world of volcanic eruptions! This hands-on kit not only allows children to create and observe a real erupting volcano, but it also engages their curiosity with 20 high-quality components and a variety of fun experiments. 5+ years
Develops skills:
Why we love it:
Erupting Science Fun: Volcano Experiment Kit includes 20 high-quality components that spark curiosity while making messy, educational fun an effortless cleanup for parents.
Magnet Marvels: Explore Science Fun!
Our Rank:
hand2mind Magnetic Science Kit for Kids 8-12 is the perfect gateway to the fascinating world of magnetism! As parents and educators, we know that children thrive when they're engaged and curious. This kit not only allows kids to make magnets float and build their own compass but also encourages critical thinking, creativity, and collaboration. 8-12 years
Develops skills:
Why we love it:
Magnet Marvels: Explore Science Fun! includes 9 exciting STEM experiments that turn magnetism into a playful adventure, sparking curiosity while building essential scientific skills.
Exciting Science Adventures with Deluxe Lab Set
Our Rank:
The Learning Resources Primary Science Deluxe Lab Set is an engaging hands-on science kit designed for curious minds aged 3 and up. With 45 pieces, including test tubes, an adjustable stand, and even safety glasses, this science kit transforms learning into an exciting adventure! Kids will develop critical skills such as problem-solving, fine motor abilities, and observational techniques through playful experiments and guided activity cards. 3+ years
Develops skills:
Why we love it:
Exciting Science Adventures with Deluxe Lab Set includes 45 pieces, transforming curious minds into little scientists as they explore STEM concepts through playful experiments and guided activity cards.
Explore STEM Fun with Primary Science Lab Set
Our Rank:
Learning Resources Primary Science Lab Set is an exciting introduction to the world of science for our little explorers! Designed for tiny hands and big imaginations, this 22-piece kit encourages children to dive into the principles of observation and experimentation through hands-on activities. With engaging experiments like mixing colors and creating a magnificent homemade volcano, kids will develop essential STEM skills while having a blast! 3+ years
Develops skills:
Why we love it:
Explore STEM Fun with Primary Science Lab Set features 22 interactive pieces to transform our little ones into budding scientists, making learning through play as exciting as a volcano eruption!