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100

What happens to a water bottle left outside in the Sun all day when you bring it inside?

It gets hot.

100

If there is a wet floor sign in a hallway, what can we infer?

The floor could be slippery.

100

When students were leaving the lunchroom, they noticed a sign posted outside the bathroom door. What can the students infer based on this sign?

The wet floor could cause someone to slip and fall.

100

Why does the star moonlight appear less bright than the Sun?

moonlght is farther away from Earth.

100

Why is the sun the brightest star 

CLOSEST TO EARTH

200

what is the stems function what will happen if it is broken?

The plant can't transport nutrients.

200

Why are leaves important for a plant?

They help the plant make food using sunlight.

200

Students in Ms. Pritchard’s class were working in the class garden. Hilda observed that students walking by the garden had pulled leaves off the plant. What can be inferred about this observation?

The leaves are important for the plant to make food and grow properly.

200

What makes the Sun appear the brightest star in the sky?

The Sun is closer to Earth than other stars.

200


Of the five stars observed, Hydri appears to be the least brightest star in the sky. However, Hydri emits more light than Centauri A and the Sun. Why does Hydri appear less bright even though it emits more light?




Hydri is farther from the Earth, so it appears less bright in the sky.


300

If two people see different numbers of stars in the sky, what could be the reason?

One person might be using a telescope.

300

Why didn’t Caleb’s solar oven work on a cloudy day?

There was not enough sunlight to heat the oven.

300

What happens to a bottle left outside in the Sun when the Sun goes down?

The bottle cools down.

300

What happens to a plant without a stem?

The plant can’t get water and nutrients from the soil.

300

The scientists at MOSI started observing and recording the star data after one of them wondered why all the stars in the sky don’t look the same. Which of the statements explains why scientists use observations to support answering questions?


The observations are evidence that support an answer to the scientists’ question.


400

What does a plant need to make its own food? (3)

Sunlight air and water 

400

What do plants need to make their own food?

They need sunlight, water, and air.

400

What causes some stars to look brighter than others?

It depends on the distance of the stars from Earth.

400

Why is it important to observe things carefully in science?

Observations help answer questions and prove what is true.

400


Kaelan and Kerrie were walking home from soccer practice and making observations about the stars. Kerrie noticed a star that looked much brighter than the two stars next to it and told Kaelan that it was the biggest star in the sky. Kaelan said they couldn’t know for sure if the star was bigger than the other stars. What other statement explains why the star might have looked brighter than the stars around it?



B. The brighter star could be closer than the other stars.


500

What happens when you throw a ball into the air?

The ball goes up and then falls back down because of gravity.

500

What tool can you use to see the stars in the sky more clearly 

a telescope 

500

What kind of energy does the Sun provide for solar-powered toys?

The Sun provides light and heat energy.

500

Why is it important for a plant to have leaves 


The leaves use water, air and energy from the Sun to make food.


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