Place Value
In the number 4,582, this digit is in the hundreds place.
What is 5?
Round 3.8 to the nearest whole number.
What is 4?
Billy makes a bet that he can eat 15 worms in 15 days to win this amount of money.
What is $50?
Sailing under the Spanish flag in 1492, this Italian explorer set out to find a western sea route to Asia but landed in the Bahamas instead.
Who is Christopher Columbus?
These long, wiggly creatures spend their lives tunneling through dirt, eating dead leaves, and making soil healthy for plants.
What are earthworms?
This is the standard form of the expanded number: 3,000 + 400 + 7.
What is 3,407?
Round 5.24 to the nearest tenth.
What is 5.2?
To make the worms easier to eat, Billy's friends load them up with condiments like ketchup, mustard, and this sweet pancake topping.
What is maple syrup?
This Venetian merchant traveled the Silk Road to China and wrote a famous book about his Asian travels that inspired future European explorers.
Who is Marco Polo?
Organisms like mold, mushrooms, and bacteria belong to this important group that cleans up dead plant and animal matter so it doesn't pile up forever.
What are decomposers?
In the decimal 0.685, this digit is in the hundredths place.
What is 8?
Round 12.476 to the nearest hundredth.
What is 12.48?
Billy says he needs the money from the bet, so he can buy one of these from George Cunningham’s brother.
What is a minibike?
Native Americans carved these sharp pointed stone tips out of rock like flint to attach to wooden shafts for hunting animal game.
What are arrowheads?
A natural system where living things like plants and animals interact with non-living parts like sunlight, water, and soil is known by this 9-letter word.
What is an ecosystem?
Moving one place to the left in a base-ten place value chart multiplies a digit's value by this number.
What is 10?
When rounding 9.96 to the nearest tenth, you get this number.
What is 10.0 (or 10)?
To slow Billy down and stall his progress, Alan and Joe take Billy and Tom to this location to watch a baseball game and gorge on hot dogs, popcorn, and soda.
What is Shea Stadium?
Native American tribes of the Great Plains, such as the Lakota and Cheyenne, relied heavily on this large animal for food, clothing, shelter, and tools.
What is the bison (or buffalo)?
Unlike animals that must eat food to grow, plants get most of the matter they need to build their bodies and leaves from water and this invisible gas in the air.
What is carbon dioxide?
In the number 4.44, the digit 4 in the tenths place is this fraction of the digit 4 in the ones place.
What is 1/10 (or one-tenth)?
A number with three decimal places rounds to 7.45 when rounded to the nearest hundredth. This is the smallest possible original number it could be.
What is 7.445?
Right after finishing his very first worm in the barn, Billy starts acting crazy, speaking in a German accent, and flapping his arms around like one of these animals to scare Alan and Joe.
What is a bird?
Stretching over 2,000 miles from Canada down to Alabama, this eastern mountain range formed a major natural barrier for early European settlers moving west.
What are the Appalachian Mountains?
In the "Life Inside a Dome" lesson, scientists tried to create a sealed mini-version of this global system, which includes all the living organisms on Earth and the parts of the planet where they live.
What is the biosphere?