Study the following sample materials. Check the box of all sample materials that are HOMOGENEOUS.

1.COFFEE AND CREAM DISSOLVED IN HOT WATER

2.MILK SOLUTION

3.MIXED TOYS IN THE ROOM

4.PAPER CLIPS AND PINS
5.SOY SAUCE

6.HALO-HALO

7.GRAVEL AND SAND
8.BUCO SALAD
9.JUICE DRINKS
10.VINEGAR