4. Grace and her friends were lying on the grass, looking up at the night sky. They noticed a group of stars that formed a recognizable shape. This group of stars is called a ______.

5. Emma and Kai visited a science museum where they saw a _________, a tool that provides evidence that the earth is rotating. It is made of a heavy weight hanging from a long wire which swings back and forth.

6. During a sunny day at the park, Priya noticed a _____ on the ground when she stood in the sunlight.

Olivia noticed that some stars seem to change their position in the sky at different times of the year. This apparent shift of position is _______.

9. In a classroom discussion, Rohan explained an ancient model of the solar system which puts Earth at the center of the solar system. This model is the ______.

10. Priya is planning a virtual meeting with her friends from different parts of the world. She needs to set a specific time that all her friends can adjust their clocks to. This specific time is known as a _______.

11. Nora is planning a birthday party and realizes that this year is a _______ with one additional day added.

Evelyn and Daniel were exploring an ancient ruin when they stumbled upon a ______, an ancient tool used to tell time during the day.