Vocabulary end of year

Imagine Nora and Ethan are playing with a globe. Ethan spins the globe and asks, 'What is an axis in the context of a sphere, like our globe here?'

• A point at the top of the sphere

• A line that a sphere rotates around

• The outer layer of a sphere

• A specific point on the sphere's surface

Answer explanation

An axis in the context of a sphere is a line that a sphere rotates around, allowing for movement and rotation in different directions.

Imagine Michael, Anika, and Elijah are playing in the park. Which of the following is an example of a sphere that rotates on an axis like the ball they might play with?

• A basketball on a court

• The Earth

• A stationary globe

• A flat map

Answer explanation

The Earth is an example of a sphere that rotates on an axis, making it the correct choice in this question.

Imagine Lily and Kai are in a lab experimenting. What does a chemical change involve in their experiment?

• Changing the state of a substance

• Altering the identity of a substance

• Mixing two substances without a reaction

• Freezing a liquid into a solid

Answer explanation

A chemical change involves altering the identity of a substance, leading to a new chemical composition or properties.

Hey there, science enthusiasts! Charlotte, Nora, and Grace are exploring chemical changes in their science lab. Can you help them identify which of the following is an example of a chemical change?

• Salt dissolving in water

• Water boiling

• Rust forming on metal

• Ice melting

Answer explanation

Rust forming on metal is an example of a chemical change because it involves a chemical reaction between the metal and oxygen in the air, leading to the formation of a new substance.

Hey there! Evelyn, Luna, and Ethan are on a mission to save the planet! They're discussing the best strategies. What does 'conservation' mean in this context?

• Using resources as quickly as possible

• Protecting resources and avoiding waste

• Ignoring the use of natural resources

• Increasing the use of plastics

Answer explanation

Conservation means protecting resources and avoiding waste, not using resources as quickly as possible or increasing the use of plastics.

Hey there! William, Jackson, and Kai are on a mission to save the planet! Which of the following is their best strategy to conserve water at home?

• Leaving the tap open

• Taking longer showers

• Using a dishwasher only when full

• Watering the garden at noon

Answer explanation

Using a dishwasher only when full helps conserve water by maximizing its usage efficiency.

Imagine Aria, Abigail, and Isla are stargazing. They spot a beautiful pattern in the sky. What do they see?

• A single star shining brightly

• A cluster of planets

• A group of stars forming a recognizable pattern

• A distant galaxy

Answer explanation

A constellation is a group of stars forming a recognizable pattern, not just a single star or group of planets. It is a specific arrangement of stars in the sky.

Hey there! Noah was wondering, what exactly is a consumer in an ecosystem?

• An organism that produces its own food

• An organism that decomposes other organisms

• An organism that gets energy by eating other organisms

• An organism that lives in water

Answer explanation

An organism that gets energy by eating other organisms is considered a consumer in an ecosystem because it relies on consuming other organisms for sustenance.

Hey there, Abigail, Harper, and Emma! Quick quiz: Are humans considered consumers, and if so, what do they consume?

• Yes, humans consume plants and animals

• No, humans produce their own food

• Yes, humans consume minerals

• No, humans do not need to eat

Answer explanation

Yes, humans are considered consumers because they consume plants and animals for food.

Hey Rohan, Emma, and Jackson! Can you figure out which of these creatures is a primary consumer?

• Gila woodpecker

• Western diamondback rattlesnake

• Red-tailed hawk

• Elf owl

Answer explanation

The correct choice of a primary consumer is the Gila woodpecker as it feeds on plants or insects, making it a first-level consumer in the food chain.