Final Review

Abigail and Aria are discussing chemistry. Can you help them figure out how many bonds a hydrogen atom can make?

• 4

• 1

• 3

• 2

Hey Zoe and David, let's dive into the world of atoms! On Earth, if something is alive, it is a carbon-based creature (added to mostly water!). So, how many bonds can a Carbon atom make?

• 4

• 2

• 6

• 8

Why do all scientists, like Priya, Sophia, and Emma, love using models?

• Modeling lets you test ideas in a computer to see if your predictions are possible.

• Scientists use models to hinder predictions

• Scientists use models to complicate simple systems

• Scientists use models to confuse hypotheses

Imagine you're in a spaceship with Michael, Lily, and Arjun, exploring the galaxy! You can't wait a million years to see what happens to the stars. I can't show you how big the Sun is because it's enormous and wouldn't fit inside the classroom! The real world has time and space limitations. Models, on the other hand, do NOT. This means?

• Models cannot provide accurate representations of objects or phenomena.

• Models are limited by time and space just like the real world.

• Models are only useful for observing real-world limitations.

• You can do experiments with models that you CAN'T do in the REAL world.

Hey Anika and Jackson, can you help us out? What are the 2 subatomic particles INSIDE the Nucleus of an atom: Choose the 2 correct answers. Each answer is worth 1 point.

• Electronic Cloud

• Nucleus

• Neutrons

• Electrons

• Protons

During a fun science experiment, Zoe and Harper discovered something fascinating! Can you help them figure out which subatomic particles are zooming AROUND outside the nucleus of an atom?

• Quarks

• Electrons

• Neutrons

• Protons

Hey Elijah, James, and Avery! Can you guess how EXTREMELY packed the Nucleus of an atom is? (Hint: It's like fitting a ton of stuff in a tiny space!)

• light

• empty

• dense

• transparent

Hey Arjun and Avery, can you guess how many atoms are in 1 molecule of water?

• There are 5 atoms: 3 of the Atoms are Hydrogen and 2 are Oxygen

• There are 3 atoms: 2 of the Atoms are Hydrogen and 1 is Oxygen.

• There are 4 atoms: All 4 of the Atoms are made of Oxygen.

• There are 3 atoms: 2 of the Atoms are Carbon and 1 is Oxygen

Ethan and Luna are discussing chemistry. Ethan asks, "Luna, do you know how many different TYPES of atoms are in 1 molecule of water?"

• 4

• 3

• 1

• 2

Hey Anika and Benjamin! Did you know that glucose is made up of 24 atoms: 6 carbon atoms, 6 oxygen atoms, and 12 hydrogen atoms all bonded together? It's a molecule we have a lot of in our body and helps us get and store energy. Can you guess another name for this amazing glucose molecule?

• water

• proteins

• sugar

• fatty acids