Place Value
In the number 47,325, what is the value of the digit 7?
7,000
102 equals this number.
100
8×10= ?
80 (TAKE THE ZERO OF THE TEN AND MOVE IT TO THE 8)
Name the three common states of matter.
What are solid, liquid, and gas?
Scientists carefully look, listen, touch, or measure and record what they discover. What are they making?
Observations
In 583,421, which digit is in the ten-thousands place?
8
Write 1,000 as a power of 10.
103 (THREE ZEROS, LITTLE THREE)
47×100= ?
What is 4,700 (TAKE THE ZEROS FROM THE HUNDRED AND MOOOOOVE IT OVER TO THE 47)
This INCREDIBLY TINY building block makes up matter.
Atom
We left one copper sample untreated while testing other conditions. Why?
To have a CONTROL for comparison.
What happens to the value of a digit when it moves one place to the left on a place-value chart?
It becomes 10 times greater! (ONE ZERO, ONE HOP)!
104 equals this number.
10,000
8,200÷100= (You can do this. Take a moment to think about it.)
82
A substance made of only one kind of atom is called this.
Element
Name three properties we can use to compare materials such as copper, iron, and granite.
Appearance/color, texture/feel, hardness or scratchability, and magnetism.
A 6 moves from the hundreds place to the ten-thousands place. How many times greater is its value?
100 times greater! (TWO ZEROS, TWO HOPS)!!
In 106, what does the exponent 6 tell you?
Six factors of 10: 10×10×10×10×10×10 (ORRRRR LITTLE SIX, SIX TENS)
63×1,000=
63,000 (TAKE THE ZEROS AND MOVE THEM TO THE 63)
What is the difference between an atom and a molecule?
An atom is an individual unit of an element, while a molecule consists of two or more atoms chemically bonded together.
You put salt into water and stir until you can no longer see the salt. Did the salt stop existing? Explain.
No—the salt dissolved and became distributed throughout the mixture.
Look at the number 555,555. Compare any 5 with the 5 immediately to its right. Explain their relationship.
The 5 on the left has 10 times the value of the 5 on its right. (ONE ZERO, ONE HOP)!!!
Without simply saying “because it has five zeros,” explain why 105=100,000.
105 means 10×10×10×10×10, which equals 100,000
TEACH THE CLASS
Use a Montessori material, place-value chart, or drawing to teach the class!
Put these ideas together: atom → element → molecule → matter. Explain how they are connected.
Matter is made of atoms; elements consist of one kind of atom; and atoms can chemically bond to form molecules.
Your copper looks different after sitting in a solution for several days. A scientist shouldn't simply say, “It changed color, so I know exactly what happened.” What should the scientist do next?
Compare it with the control and other conditions, record observations, look for evidence of a new substance/chemical reaction, and use evidence before drawing a conclusion