Circles

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

The Jones family wants to enclose their circular garden with a fence. To the nearest foot, what is the minimum length of fencing they need to buy?

• 56.25 ft

• 246.2 ft

• 365.56 ft

• 392.5 ft

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

Find the circumference of a circle with a radius of 12.5 mm .

• 37.68mm

• 18.84mm

• 78.5mm

• none of the above

What is the circumference of a circle with a radius of 27 yards?

• 169.56 yards

• 179.56 yards

• 189.56 yards

• 159.56 yards

The number pi is approximately equal to _________. 

• 3.14

• 3

• whatever the diameter equals 

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft