Crossword Puzzle PROPERTIES OF MATERIALSOnline version GUESS THE CLUES by OLGA arnal terren 1 WHEN A MATERIAL TRANSMIT OR DOES NOT TRANSMIT HEAT 2 WHEN A MATERIAL LET LIGHT THROUGH OR DOES NOT LET IT 3 WHEN A MATERIAL LETS LIGHT PASS THROUGH 4 WHEN A MATERIAL DOES NOT LET LIQUID PASS THROUGH 5 WHEN A MATERIAL TRANSMIT HEAT 6 WHEN A MATERIAL DOES NOT TRANSMIT HEAT 7 WHEN A MATERIAL DOES NOT LET LIGHT PASS THROUGH 6 3 2 4 5 7 1