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