Matching Pairs At the Beach Vocabulary Online version 5th Grade - Unit 2 Week 1 by Miss Sonzogni 1 Lamented 2 Concealed 3 Sternly 4 Tweezers 5 Hammocks 6 Sea Urchins 7 Driftwood 8 Algae Strictly; firmly A group of living things, mostly found in water, that can make their own food. Wood carried along by water, or washed ashore by the water. Hanging beds or couches made of canvas, cord, or other materials. Felt or showed grief Put out of sight; hidden. Small, round sea animals with spiny shells. Small pinchers for picking up small objects.