Math & Science Study Guide

SCELA 4th Grade

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Math Key Vocabulary

Place value- the numerical value that a digit has by virtue of its position in a number.
Digit- Numbers- any of the numbers 0 to 9; e.g., What is the value of the digit in the tens place?
Bundling- making, renaming, changing, exchanging, regrouping, trading (e.g., exchanging 10 ones for 1 ten)
Standard form -a number written in the format 135
Word form- numbers written out e.g. one hundred thirty-five
Expanded form- Dealing with numbers in place value we drag them out. E.g. 4,562- 4,000+500+60+2

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Moving on the Place Value Chart

Check out this YouTube to help understand Lesson 2 "hiking the place value chart"

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Rounding 5-6 digit numbers

Check out this YouTube video with help on rounding on a vertical number line.

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Place Value Terms

Here is a chart to help navigate the place value terms.

Science Key Vocabulary

Obtain - get, acquire, or secure(something)

Evaluate - form an idea of the amount, number, or value of; assess

Communicate - share or exchange information, news, or ideas

Compare - estimate, measure, or note the similarity or dissimilarity between

Contrast - compare in such a way as to emphasize differences

Physical - relating to things perceived through the senses as opposed to the mind, tangible or concrete

Attributes - a quality or feature regarded as a characteristic or inherent part of someone or

something

Model - a three-dimensional representation of a person or thing or of a proposed structure, typically on a smaller scale than the original

Effects - a change which is a result or consequence of an action or other cause

Position - a place where someone or something is located or has been put

Motion - the action or process of moving or being moved

In relation to - in the context of; in connection with

Observed - noticed or perceived; watched carefully and attentively

Ask questions - seeking to learn, address a person or text in order to gain information

What are the differences between different celestial objects? Why are the moon and sun so important?

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Differences in planets and stars

Here is a fun Mystery Science video activity to learn more about wondering stars!

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Our Solar System

Where does the solar system end? It all depends on the criteria you are using. Based on where the planets end, you could say it's Neptune and the Kuiper Belt. If you measure by edge of the sun's magnetic fields, the end is the heliosphere. If you judge by the stopping point of sun's gravitational influence, the solar system would end at the Oort Cloud. Check out this Nasa video about our solar system!

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Moon Phases

Have you ever wondered why, some nights, the moon looks like a big, bright circle, and some nights it looks like a little sliver? Join Jessi and Squeaks to learn about how the moon's orbit changes the way we see it here on Earth! Check out this video from SciShow to learn more!

Math & Science Study Guide

SCELA 4th Grade

Math Key Vocabulary

Moving on the Place Value Chart

Rounding 5-6 digit numbers

Place Value Terms

Science Key Vocabulary

What are the differences between different celestial objects? Why are the moon and sun so important? What are the differences between different celestial objects? Why are the moon and sun so important?

Differences in planets and stars

Our Solar System

Moon Phases

What are the differences between different celestial objects? Why are the moon and sun so important?

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