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