Challenge 1
Can you figure out how to make the
balance even?
If 2 diamonds = 1 circle and
2 squares = 3 circles, what do you need to
balance out 1 square?
Can you figure out how to make the
balance even?
If 2 diamonds = 1 circle and
2 squares = 3 circles, what do you need to
balance out 1 square?
Can you figure out how to make the
balance even?
If 2 diamonds = 1 circle and
2 squares = 3 circles, what do you need to
balance out 1 square?
Can you figure out how to make the
balance even?
Equations to solve problem:
If 2 d = 1 c and 2 s = 3 c then
2 s = 3(2 d)
2 s = 6 d, or 1 s = 3 d
1s = (d + d) + d, therefore 1s = (1c) + d
If 2 diamonds = 1 circle and
2 squares = 3 circles, what do you need to
balance out 1 square?
Challenge 2
L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/
Using a total of 7 brass weights,
can you balance this balance?
Some weights can be used more than once
Using a total of 7 brass weights,
can you balance this balance?
Challenge 3
L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/
Can you balance the balance
below by using the fewest
number of weights?
Some weights can be used more than once
Can you balance the balance
below by using the fewest
number of weights?
Some weights can be used more than once
Challenge 4
L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/
What is the total mass?
Where should the riders be?
What is the total mass?
Where should the riders be?
172 g
http://www.ohaus.com/products/education/weblab/TBBread.html
Challenge 5
L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/
Complete the following conversions for grams
and kilograms:
5,250 g = ____ kg
1,998 g = ____ kg
610 g = ____ kg
40 g = _____ kg
8.1 kg = ______ g
2.92 kg = ______ g
0.73 kg = ______ g
0.01 kg = ______ g
Complete the following conversions for grams
and kilograms:
5,250 g = 5.25 kg
1,998 g = 1.998 kg
610 g = 0.61 kg
40 g = 0.04 kg
8.1 kg = 8,100 g
2.92 kg = 2,920 g
0.73 kg = 730 g
0.01 kg = 10 g
Challenge 6
L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/
Unscramble the following
words related to mass
a.
b.
c.
d.
e.
f.
g.
amrsg
msliaokrg
elncaba
rridse
maeb
nap
rtpeion
Unscramble the following
words related to mass
a.
b.
c.
d.
e.
f.
g.
amrsg
msliaokrg
elncaba
rridse
maeb
nap
rtpeion
a.
b.
c.
d.
e.
f.
g.
Grams
Kilograms
Balance
Riders
Beam
Pan
Pointer
Challenge 7
L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/
Complete the following conversions for grams
and milligrams:
7,165 mg = ____ g
3,110 mg = ____ g
430 mg = ____ g
88 mg = _____ g
9.56 g = _____ mg
4.2 g = _____ mg
0.18 g = _____ mg
0.007 g = ____ mg
Complete the following conversions for grams
and milligrams:
7,165 mg = 7.165 g
3,110 mg = 3.11 g
430 mg = 0.43 g
88 mg = 0.088 g
÷ 1,000
9.56 g = 9,560 mg
4.2 g = 4,200 mg
0.18 g = 180 mg
0.007 g = 7 mg
x 1,000