100 first science words for babies and toddlers

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my first 100 science words by twopluscute.com

The “100 first science words” list contains basic shapes, four basic elements, terms from biology, chemistry, astronomy, geology, physics and more. Let me tell you, the hard part was to keep the list short, containing only 100 words. I regret removing several fundamental terms – but we can wait until elementary-school for those, right?

The included science terms, just like duck, dog and cat, are words that will stay with your child for the rest of their lives, whether they become scientists or not – ok, maybe not ketone.

Do not worry about complexity, if infants can learn words like butterfly, pineapple and hippopotamus, they certainly can learn words like molecule and satellite. I do not expect my baby to memorize these terms. Instead, I hope they will be helpful in familiarizing her with the sounds and later with the general concepts from an early stage, always in the context of playing a game and having fun.

And now, without further ado, I present you:



A   atom, acid, allele, astronaut, atmosphere

B   bond, base, brain, bacteria

C   cell, core, comet, circle, carbon, climate

D   distance, density, diameter

E   Earth, energy, enzyme, eclipse, electron

F   flux, fluid, force, 

G   gas, gene, galaxy, gravity, genome

H   horizon, hydrogen, hormone

I     ion, isotope, immune, inertia

J    Jupiter

K    ketone, keratin

L    lava, lunar, light, liquid, length

M   mass, moon, matter, magma, magnet, meteor, Mercury, molecule

N    nova, neuron, nucleus, Neptune, nitrogen

O    orbit, oxygen, ozone

P    pulse, planet, protein, plasma, proton, particle, positron

Q    quark, quantum

R    radar, rocket

S    Sun, star, salt, solid, solar, space (the final frontier), sphere, square, Saturn

T    time, tissue, triangle, 

U   umbra, Uranus, universe

V   virus, Venus, volcano

W  water, wave, width, weight, 

X   x-rays

Y   year, yard

Z   zygote, zenith


This list is a compilation for a book I am making for my baby daughter. The general idea is to use happy simple images, maybe some ‘lift the flap’, occasionally grouping the words in mini stories. Something like: “little Oxygen along with the Hydrogen twins, decided to play the game ‘form a molecule’ and they made water. Then they spent the day splashing around, until the Sun set and they had to sleep.” “Jupiter had a lot of weight and was passing gas all year long. Moon and Sun didn’t say a word because Jupiter was a very good friend but, they kept pinching their noses every time Jupiter came to play.” One day, if the art turns out really good, I will publish it (<- carried away wishful thinking).

(Meanwhile I keep reconfiguring her blush-pink nursery room and I keep changing things in it. Like this simple but happy spring mobile I made for over her crib.)

Back to earth now, I hope you liked the list. Which words would you remove or substitute? Besides units, which words would you choose for the scarce letters (J, K, Q, R, X, Y)?  Tell me what you think in the comments and don’t forget to subscribe!


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Creative K Kids
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12 thoughts on “100 first science words for babies and toddlers

  • June 2, 2016 at 8:29 pm

    Hm…those are hard letters….how about Joule, Kelvin, Quartz, Radiate, Xantham, Yield.
    Ok, maybe babies and toddlers don’t need to know these words. 🙂 Those are hard letters. Love this list AND your cute idea for a book. It’s a great idea – I’d love to see it if you make it! Good luck!

    • June 2, 2016 at 9:58 pm

      All good ideas, quartz sounds easy enough to pronounce and radiate/radiation – why didn’t I think of that?!

  • May 18, 2015 at 3:27 pm

    Great post! Pinned and tweeted. We appreciate you taking the time to party with us. I hope to see you tonight at 7 pm.. Happy Monday! Lou Lou Girls

    • May 19, 2015 at 11:25 am

      Thank you for the pin and the tweet, I enjoy partying with you. 🙂

  • May 12, 2015 at 4:27 pm

    What a great idea! I think I’m going to follow your example for my baby girl! I woudn’t remove any word. Thanks for linking up to the Bloggers Brags Pinterest Party. I have pinned your post to the Bloggers Brags Pinterest Board

    • May 12, 2015 at 9:46 pm

      Thank you Ntina!
      I hope your little girl has fun with the words and discovering the world of science. 🙂

  • February 15, 2015 at 11:41 pm

    Wow! I LOVE this list! I am creating something using science based words. I have been stuck on a couple, so this list has helped a lot!

    Yep! We have used a lot of these words in our home. Kids are brighter than we think. This kind of vocabulary is the norm. in our home and our son does not know any different. It just becomes a way of life.

    Thank you so much for sharing! 🙂

    • February 16, 2015 at 3:34 am

      Thanks for stopping by, am glad you liked the list. I can’t wait to see what you are creating – hopefully something you’ll share!

  • January 21, 2015 at 5:27 am

    I think I’m going to bookmark this list and slowly make our way through. My four year old and I use the scientific method (or bits and pieces of it) on a near daily basis. Sometimes it goes a bit too far (four year old imaginations…) but I hope we will establish a framework for him to utilize for the rest of his life.

    • January 21, 2015 at 8:21 pm

      Color me intrigued! Do you mean the ‘question->hypothesis->experiment->etc’ method? If yes, I bet your little artist comes up with super imaginative ideas.

    • January 21, 2015 at 8:13 pm

      Jet! Great idea – it didn’t even cross my mind before you mentioned it, thank you.


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