Science 6

Science 6 2005/2006

Grade Level Expectations – GLEs

Floating and Sinking

1.1.1 – Understand how to use physical and chemical properties to sort and identify substances. W

(6)Identify, categorize, describe, and sort substances using physical and/or chemical properties (i.e., boiling point, density, freezing point, mass, acidity [pH], solubility, magnetism).

You will identify objects using physical properties; density and mass.

(8)Identify an unknown substance using the properties of a known substance.

You will identify an object using what is known about other objects.

(8)Describe why substances with the same volume or same mass may have different densities.

You will be able to describe why objects with the same volume or mass have different densities.

(8)Describe the volumetric properties of solids, liquids, and gases (e.g., a gas has the same volume as its container).

You will be able to describe why liquids have the same volume as its container.

1.1.5 – Understand how to classify rocks, soils, air, and water into groups based on their chemical and physical properties. W

(7)Describe how Earth’s water (i.e., oceans, fresh waters, glaciers, ground water) can have different properties (e.g., salinity, density).

You will be able to describe why water has different density when compared to other objects, describe how that density can change.

1.2.1 – Analyze how the parts of a system interconnect and influence each other. W

(6)Explain how the parts of a system interconnect and influence each other.

You will be able to explain how buoyant force, density of an object, density of a liquid, shape of an object, and mass all work together to keep an object afloat or allow it to sink.

1.3.1 – Understand factors that affect the strength and direction of forces. W

(7)Describe how forces acting on an object may balance each other (e.g., the downward force of gravity on an object sitting on a table is balanced by an upward force from the table).

You will be able to describe how buoyant force, density of an object, density of a liquid, shape of an object, and mass all work together to keep an object afloat or allow it to sink.

(7)Describe pressure as a force (e.g., pressure increases result in greater forces acting on objects going deeper in a body of water).

You will be able to describe why there is more pressure (force) on an object going deeper in a body of water.

1.3.2 – Understand how balanced and unbalanced forces can change the motion of objects. W

(7)Investigate and describe the balanced and unbalanced forces acting on an object (e.g., a model car speeding up on a table has both an unbalanced force pulling it forward and a gravitational force pulling it down balanced by the table pushing upward).

You will investigate and be able to describe how buoyant force, density of an object, density of a liquid, shape of an object, and mass all work together to keep an object afloat or allow it to sink.

(7)Investigate and describe pressure differences that result in unbalanced forces moving objects (e.g., pressure differences cause forces that move air masses, move blood through the heart, cause volcanic eruptions).

You will investigate and describe pressure differences that result in unbalanced forces caused by gravity.

2.1.2 – Understand how to plan and conduct scientific investigations. W

(6,7,8)Make predictions (hypothesize) and give reasons.

You will make predictions before the start of a investigation (lab), and state the reasons behind your predictions.

(6,7,8)Generate a logical plan for, and conduct, a scientific controlled investigation with the following attributes:

prediction (hypothesis)
appropriate materials, tools, and available computer technology
controlled variables (kept the same)
one manipulated (changed) variable
responding (dependent) variable
gather, record, and organize data using appropriate units, charts, and/or graphs
multiple trials

You will follow a logical plan for each investigation (lab).

(6,7,8)Generate a logical plan for a simple field investigation with the following attributes:

identify multiple variables
select observable or measurable variables related to the investigative question

You will identify and make observations using multiple variables such as identifying objects and their weight.

(6,7,8)Identify and explain safety requirements that would be needed in the investigation.

You will identify and explain safety rules for conducting investigations (labs).

2.1.3 – Apply understanding of how to construct a scientific explanation using evidence and inferential logic.

(6,7,8)Generate a scientific conclusion including supporting data from an investigation using inferential logic (e.g., chewing gum loses more mass than bubble gum after being chewed for 5 minutes; chewing gum lost 2.00 grams while bubble gum only lost 1.47 grams).

You will be able to generate a scientific conclusion including supporting data from previous investigations (labs).

(6,7,8)Describe a reason for a given conclusion using evidence from an investigation.

You will be able to describe a reason for your conclusion, which used evidence, from an investigation (lab) you completed.

(6,7,8)Generate a scientific explanation of an observed phenomenon using given data.

You will be able to develop a scientific description from data collected within your investigation (lab).

(6)Predict what logically might occur if an investigation lasted longer or changed.

You will be able to extend/expand a given outcome from an investigation (lab) based on the collected/given data.

2.1.5 – Apply understanding of how to report investigations and explanations of objects, events, systems, and processes. W

(6,7,8)Report observations of scientific investigations without making inferences.

You will conduct investigations (labs) and report observations based on the experiment itself.

3.1.1 – Analyze common problems or challenges in which scientific design can be or has been used to design solutions. W

(6,7,8)Describe how science and technology could be used to solve all or part of a human problem and vice versa (e.g., understanding erosion can be used to solve some flooding problems).

You will be able to describe how science and technology has helped understand issues involved in moving cargo across varying bodies of water, and how these issues can be overcome.

Catastrophic Events – Storms

1.2.1 – Analyze how the parts of a system interconnect and influence each other. W

(6)Explain how the parts of a system interconnect and influence each other.

You will be able to explain how weather and convections currents (both in air and water) are interconnected and influence each other.

(7)Describe the flow of matter and energy through a system (i.e., energy and matter inputs, outputs, transfers, transformations).

You will be able to describe how heat energy travels within a system known as convection current.

1.2.2 – Understand how various factors affect energy transfers and that energy can be transformed from one form of energy to another. W

(8)Explain the transfer and transformations of energy within a system (e.g., conduction and convection of heat [thermal] energy).

You will be able to explain how heat energy travels within a system known as convection current.

1.2.4 – Understand the components and interconnections of Earth’s systems. W

(7)Describe the components of the earth’s systems (i.e., the core, the mantle, oceanic and crustal plates, landforms, the hydrosphere and atmosphere).

You will be able to describe the parts of Earth’s atmosphere.

(7)Describe the interactions among the components of Earth’s systems (i.e., the core, the mantle, oceanic and crustal plates, landforms, the hydrosphere and atmosphere).

You will be able to describe the interactions within the Earth’s atmospheres.

1.3.4 – Understand the processes that continually change the surface of the Earth. W

(7)Describe how destructive processes change landforms (e.g., rivers erode landforms).

You will be able to describe how destructive processes such as catastrophic events change Earth.

1.3.5 – Understand how fossils and other evidence are used to document life and environmental changes over time. W

(7)Describe different kinds of evidence that are used to document past conditions on Earth (e.g., glacial markings, ash layers, tree rings, rock layers).

You will be able to describe how different land formations and documented weather patterns on the Earth help to identify past sever weather condition areas.

1.3.6 – Analyze the relationship between weather and climate and how ocean currents and global atmospheric circulation affect weather and climate. W

(7)Compare weather and climate.

You will be able to compare similarities and differences between weather and climate.

(7)Explain the effect of the water cycle on weather (e.g., cloud formation, storms).

You will be able to explain how the water cycle is connected to the formation of clouds and storms.

(7)Explain how ocean currents influence the atmosphere in terms of weather and climate.

You will be able to explain how the ocean currents influence what happens with weather and climate here on Earth.

(7)Explain the causes of atmospheric circulation and oceanic currents (e.g., prevailing winds are the result of hot tropical regions, cold polar regions, and Earth’s spin).

You will be able to explain how the rotation of the Earth and winds caused by convection currents cause atmospheric circulation, and how the rotation of the Earth and convection currents can also cause oceanic currents.

2.1.4 – Analyze how models are used to investigate objects, events, systems, and processes. W

(6)Compare models or computer simulations of phenomena to the actual phenomena.

You will be able to compare weather map models and computer generated weather simulations to actual weather conditions.

(6)Explain how models or computer simulations are used to investigate and predict the behavior of objects, events, systems, or processes.

You will be able to explain how weather map models and computer generated weather simulations are used to investigate and predict the behavior storms.

2.1.5 - Apply understanding of how to report investigations and explanations of objects, events, systems, and processes. W

(6,7,8)Report observations of scientific investigations without making inferences.

You will conduct investigations (labs) and report observations based on the experiment itself.