While exploring a rocky hill, Grace wondered what all the rocks, plants, and even the air around her were made of. All matter is composed of:

Maya is learning about nutrition and reads that oils and fats are important in her diet. She wonders, oils and fats are what type of macromolecule?

During a science experiment, Noah observes that salt dissolves easily in water. Which property of water allows it to dissolve many substances?

Lily is building a model of an atom for her science project. She wants to know which particles she should place inside the nucleus of her model atom. Which particles are found within the nucleus of an atom?

Aiden is baking bread and learns that certain substances in yeast help speed up the chemical reactions needed for the dough to rise. These substances are called:

While visiting a frozen lake, Mia notices that ice floats on the surface of the water instead of sinking. Which property of water explains why ice floats?

James is looking at a chart in his science classroom that displays ____, arranged by their atomic number.

Lucas is looking at a diagram of a water molecule and notices that the oxygen atom has a slight negative charge while the hydrogen atoms have a slight positive charge. What term describes this characteristic of water?

After a rainstorm, Aria notices that water droplets stick together on the surface of leaves and also cling to the leaves themselves. What is responsible for the “stickiness” of water that results in this cohesion and adhesion?

Kai is studying for his biology exam and comes across a diagram of DNA in his textbook. He wonders, DNA is what type of macromolecule?

Kai is baking cookies and uses a special cookie cutter (shown as B in the diagram) to cut dough into specific shapes. The piece of dough that fits perfectly into the cookie cutter is labeled A in the diagram below. The letter A in the diagram below represents the:

Abigail is looking at a glass of water and wonders what H2O is an example of:

Jackson is baking bread and learns that one of the main ingredients is made from repeating units of sugar, like glucose. Which macromolecule is he learning about?

Maya is baking cookies and uses a special cookie cutter to shape the dough. In the diagram below, the letter B represents the cookie cutter. What does the letter B stand for?

Emma is reading about proteins and learns that they are made up of smaller building blocks. What are the building blocks of proteins called?

Jackson notices a water strider effortlessly gliding across the surface of a pond. This ability is due to what property of water?

Lily is conducting an experiment to find out at which pH lipase works best. She tests the enzyme at different pH levels. At which pH will Lily observe the optimal activity of lipase?