Matching Pairs At the Beach Vocabulary Online version 5th Grade - Unit 2 Week 1 by Miss Sonzogni 1 Lamented 2 Algae 3 Sternly 4 Concealed 5 Hammocks 6 Tweezers 7 Sea Urchins 8 Driftwood 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. Wood carried along by water, or washed ashore by the water. Felt or showed grief Strictly; firmly Small pinchers for picking up small objects. Put out of sight; hidden.