1.	Choose the most reasonable estimate for the mass of an empty coffee mug.
		A.	20 kg	B.	20 g
		C.	2 kg	D.	200 g
		Hint
	2.	Choose the most reasonable estimate for the mass of a 4th grader.
		A.	250 g	B.	25 kg
		C.	25 g	D.	250 kg
		Hint
	3.	Choose the most reasonable estimate for the mass of an MP3 player.
		A.	6 g	B.	60 g
		C.	600 kg	D.	60 kg
		Hint
	4.	Choose the most reasonable estimate for the mass of a refrigerator.
		A.	150 kg	B.	150 g
		C.	1,500 g	D.	1,500 kg
		Hint
	5.	Which is the most reasonable mass for the handset of a telephone?
		A.	27 g	B.	270 g
		C.	27 kg	D.	270 kg
		Hint