5th Grade Science Review

. William was baking bread and needed water that was 41°C(105°F) to activate the yeast. William microwaved the water to the correct temperature. What material should William use as an insulator when taking the hot water out of the microwave?

• A. metal

• B. glass

• C. fabric

• D. plastic

. Ellen was coloring a triangle on the sidewalk using blue chalk. The chalk moved quickly back and forth over the area without stopping. What did Ellen observe about the piece of chalk when the shape was completely colored?

• A. The part of the chalk that was rubbing against the ground was warmer than the rest of the piece of chalk.

• B. The part of the chalk that was rubbing against the ground was cooler than the rest of the piece of chalk.

• C. The part of the chalk that was rubbing against the ground was greater in mass than when Ellen started.

• D. The part of the chalk that was rubbing against the ground was greater in volume than when Ellen started.

Kaelan observed and tracked the life cycle of orange blossom tree. Timothy observed and tracked the life cycle of a pine tree. After collecting data over 2 years they shared their evidence through diagrams. How would Timothy’s life cycle diagram compare to Kaelan’s?

• A. Both diagrams include seeds, but Kaelan’s diagram shows seeds turning into flowers while Timothy’s diagram shows seeds turning into fruit.

• B. Kaelan’s diagram includes seeds produced in flowers, while Timothy’s diagram includes seeds produced in cones.

• C. Both diagrams include germination, but Timothy’s diagram shows germination happening to the adult plant.

• D. Kaelan’s diagram shows seeds grown from fertilization, but Timothy’s diagram shows seeds grown from spores.

Benita conducted an investigation. Benita placed a bowl of strawberries in the refrigerator and a bowl of strawberries on the counter. Benita then compared the strawberries after two weeks. What would Benita observe about the bowls of strawberries?

• A. The chemical change of decaying happened slower to the strawberries on the counter than in the refrigerator.

• B. The chemical change of decaying happened faster to the strawberries on the counter than in the refrigerator.

• C. The physical change of decaying happened slower to the strawberries on the counter than in the refrigerator.

• D. The physical change of decaying happened faster to the strawberries on the counter than in the refrigerator.

. The Amazon rainforest is divided into layers. There is a very dense canopy of trees and heavy rainfall that make it difficult for the sunlight to reach the plants on the forest floor. Which adaptation would NOT be one that would help plants on the forest floor survive with less sunlight?

• A. plants with shallow roots

• B. carnivorous plants that eat insects

• C. plants with very wide leaves

• D. plants with dark leaves

. Valaria’s family visits Canada every summer. One of Valaria’s favorite activities is to sit under the big shade tree and feed the ducks in the pond. One year, the family decided to visit in November. Valaria was upset when visiting the pond because there were no ducks and the tree appeared to be dead. What happened to the tree?

• A. The tree died over the winter due to lack of sunlight and cold temperatures.

• B. The tree died during the summer due to hot temperatures.

• C. The tree becomes dormant every fall and grows a new tree from a seed in the spring before Valaria’s family visits.

• D. The tree becomes dormant in the winter to conserve energy due to less sunlight and colder temperatures.

Marley was investigating electrical charges using a can and one balloon. Marley placed the balloon near the can and observed no changes. Marley then rubbed the balloon on a piece of wool for 20 seconds before placing the balloon in front of the can again. This time, the can began to roll towards the balloon. Which statement explains what happened in the investigation?

• A. The can and the balloon start as uncharged objects. Rubbing the balloon creates a charge, so that the can and balloon now repel.

• B. The can and the balloon start as uncharged objects. Rubbing the balloon creates a charge, so that the can and balloon now attract.

• C. The can and the balloon start with opposite charges. Rubbing the balloon makes it an uncharged object, so that the can and balloon now repel.

• D. The can and the balloon start with opposite charges. Rubbing the balloon makes it an uncharged object, so that the can and balloon now attract.

Walking catfish were introduced to the Florida ecosystem in the 1960’s from Asia. This black, slippery, snake-like freshwater fish has adapted to walk on land and can survive 18 hours out of water. This enables them to find prey both on land and in the water, and they have no natural predators in the area. What effect does this invasive species have on the native population of the animals found in the Florida Everglades?

• A. The walking catfish will balance the native populations in the Florida Everglades.

• B. The walking catfish will cause a change in the water temperatures of the stagnant waters, canals, and ponds it is found in.

• C. The walking catfish will reduce available food and space for native species in the Florida Everglades.

• D. The walking catfish will easily become prey for native animals in the Florida Everglades.

. Limestone is formed from the remains of marine animals and shells. Limestone is found at the bottom of the ocean. Richard and Nancy went diving in the Atlantic Ocean. Richard scooped a sample of limestone up in a net. Nancy observed that it felt like a rock. What type of rock is limestone?

• A. sedimentary rock

• B. metamorphic rock

• C. igneous rock

• D. magmatic rock

In order to complete the process of digestion, food must pass through both the small and large intestine, which have an average combined length of 7.5 meters. What are the functions of the intestines during digestion?

• A. Saliva mixes with food and helps break it into smaller chunks.

• B. The food is broken down further through muscle contractions and digestive juices.

• C. Enzymes that break down the food are produced and introduced into the food.

• D. The nutrients and water in the food are absorbed and pass into the blood.